1640303820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:457

約数の個数: 288

約数和(自身を含む): 5625547200

約数和(自身を除く): 3985243380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 30, 34, 36, 38, 45, 51, 57, 60, 68, 76, 85, 89, 90, 95, 102, 114, 153, 170, 171, 178, 180, 190, 204, 228, 255, 267, 285, 306, 317, 323, 340, 342, 356, 380, 445, 510, 534, 570, 612, 634, 646, 684, 765, 801, 855, 890, 951, 969, 1020, 1068, 1140, 1268, 1292, 1335, 1513, 1530, 1585, 1602, 1615, 1691, 1710, 1780, 1902, 1938, 2670, 2853, 2907, 3026, 3060, 3170, 3204, 3230, 3382, 3420, 3804, 3876, 4005, 4539, 4755, 4845, 5073, 5340, 5389, 5706, 5814, 6023, 6052, 6340, 6460, 6764, 7565, 8010, 8455, 9078, 9510, 9690, 10146, 10778, 11412, 11628, 12046, 13617, 14265, 14535, 15130, 15219, 16020, 16167, 16910, 18069, 18156, 19020, 19380, 20292, 21556, 22695, 24092, 25365, 26945, 27234, 28213, 28530, 28747, 29070, 30115, 30260, 30438, 32334, 33820, 36138, 45390, 48501, 50730, 53890, 54207, 54468, 56426, 57060, 57494, 58140, 60230, 60876, 64668, 68085, 72276, 76095, 80835, 84639, 86241, 90345, 90780, 97002, 101460, 102391, 107780, 108414, 112852, 114988, 120460, 136170, 141065, 143735, 152190, 161670, 169278, 172482, 180690, 194004, 204782, 216828, 242505, 253917, 258723, 271035, 272340, 282130, 287470, 304380, 307173, 323340, 338556, 344964, 361380, 409564, 423195, 431205, 479621, 485010, 507834, 511955, 517446, 536047, 542070, 564260, 574940, 614346, 846390, 862410, 921519, 959242, 970020, 1015668, 1023910, 1034892, 1072094, 1084140, 1228692, 1269585, 1293615, 1438863, 1535865, 1608141, 1692780, 1724820, 1843038, 1918484, 2047820, 2144188, 2398105, 2539170, 2587230, 2680235, 2877726, 3071730, 3216282, 3686076, 4316589, 4607595, 4796210, 4824423, 5078340, 5174460, 5360470, 5755452, 6143460, 6432564, 7194315, 8040705, 8633178, 9112799, 9215190, 9592420, 9648846, 10720940, 14388630, 16081410, 17266356, 18225598, 18430380, 19297692, 21582945, 24122115, 27338397, 28777260, 32162820, 36451196, 43165890, 45563995, 48244230, 54676794, 82015191, 86331780, 91127990, 96488460, 109353588, 136691985, 164030382, 182255980, 273383970, 328060764, 410075955, 546767940, 820151910, 1640303820]

約数ペア:

[(1, 1640303820), (2, 820151910), (3, 546767940), (4, 410075955), (5, 328060764), (6, 273383970), (9, 182255980), (10, 164030382), (12, 136691985), (15, 109353588), (17, 96488460), (18, 91127990), (19, 86331780), (20, 82015191), (30, 54676794), (34, 48244230), (36, 45563995), (38, 43165890), (45, 36451196), (51, 32162820), (57, 28777260), (60, 27338397), (68, 24122115), (76, 21582945), (85, 19297692), (89, 18430380), (90, 18225598), (95, 17266356), (102, 16081410), (114, 14388630), (153, 10720940), (170, 9648846), (171, 9592420), (178, 9215190), (180, 9112799), (190, 8633178), (204, 8040705), (228, 7194315), (255, 6432564), (267, 6143460), (285, 5755452), (306, 5360470), (317, 5174460), (323, 5078340), (340, 4824423), (342, 4796210), (356, 4607595), (380, 4316589), (445, 3686076), (510, 3216282), (534, 3071730), (570, 2877726), (612, 2680235), (634, 2587230), (646, 2539170), (684, 2398105), (765, 2144188), (801, 2047820), (855, 1918484), (890, 1843038), (951, 1724820), (969, 1692780), (1020, 1608141), (1068, 1535865), (1140, 1438863), (1268, 1293615), (1292, 1269585), (1335, 1228692), (1513, 1084140), (1530, 1072094), (1585, 1034892), (1602, 1023910), (1615, 1015668), (1691, 970020), (1710, 959242), (1780, 921519), (1902, 862410), (1938, 846390), (2670, 614346), (2853, 574940), (2907, 564260), (3026, 542070), (3060, 536047), (3170, 517446), (3204, 511955), (3230, 507834), (3382, 485010), (3420, 479621), (3804, 431205), (3876, 423195), (4005, 409564), (4539, 361380), (4755, 344964), (4845, 338556), (5073, 323340), (5340, 307173), (5389, 304380), (5706, 287470), (5814, 282130), (6023, 272340), (6052, 271035), (6340, 258723), (6460, 253917), (6764, 242505), (7565, 216828), (8010, 204782), (8455, 194004), (9078, 180690), (9510, 172482), (9690, 169278), (10146, 161670), (10778, 152190), (11412, 143735), (11628, 141065), (12046, 136170), (13617, 120460), (14265, 114988), (14535, 112852), (15130, 108414), (15219, 107780), (16020, 102391), (16167, 101460), (16910, 97002), (18069, 90780), (18156, 90345), (19020, 86241), (19380, 84639), (20292, 80835), (21556, 76095), (22695, 72276), (24092, 68085), (25365, 64668), (26945, 60876), (27234, 60230), (28213, 58140), (28530, 57494), (28747, 57060), (29070, 56426), (30115, 54468), (30260, 54207), (30438, 53890), (32334, 50730), (33820, 48501), (36138, 45390)]