257717460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{613}}^1$

素因数の和:663

約数の個数: 288

約数和(自身を含む): 987783552

約数和(自身を除く): 730066092

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15, 20, 21, 22, 26, 28, 30, 33, 35, 39, 42, 44, 49, 52, 55, 60, 65, 66, 70, 77, 78, 84, 91, 98, 105, 110, 130, 132, 140, 143, 147, 154, 156, 165, 182, 195, 196, 210, 220, 231, 245, 260, 273, 286, 294, 308, 330, 364, 385, 390, 420, 429, 455, 462, 490, 539, 546, 572, 588, 613, 637, 660, 715, 735, 770, 780, 858, 910, 924, 980, 1001, 1078, 1092, 1155, 1226, 1274, 1365, 1430, 1470, 1540, 1617, 1716, 1820, 1839, 1911, 2002, 2145, 2156, 2310, 2452, 2548, 2695, 2730, 2860, 2940, 3003, 3065, 3185, 3234, 3678, 3822, 4004, 4290, 4291, 4620, 5005, 5390, 5460, 6006, 6130, 6370, 6468, 6743, 7007, 7356, 7644, 7969, 8085, 8580, 8582, 9195, 9555, 10010, 10780, 12012, 12260, 12740, 12873, 13486, 14014, 15015, 15938, 16170, 17164, 18390, 19110, 20020, 20229, 21021, 21455, 23907, 25746, 26972, 28028, 30030, 30037, 31876, 32340, 33715, 35035, 36780, 38220, 39845, 40458, 42042, 42910, 47201, 47814, 51492, 55783, 60060, 60074, 64365, 67430, 70070, 79690, 80916, 84084, 85820, 87659, 90111, 94402, 95628, 101145, 105105, 111566, 119535, 120148, 128730, 134860, 140140, 141603, 150185, 159380, 167349, 175318, 180222, 188804, 202290, 210210, 223132, 236005, 239070, 257460, 262977, 278915, 283206, 300370, 330407, 334698, 350636, 360444, 390481, 404580, 420420, 438295, 450555, 472010, 478140, 525954, 557830, 566412, 600740, 613613, 660814, 669396, 708015, 780962, 836745, 876590, 901110, 944020, 991221, 1051908, 1115660, 1171443, 1227226, 1314885, 1321628, 1416030, 1561924, 1652035, 1673490, 1753180, 1802220, 1840839, 1952405, 1982442, 2342886, 2454452, 2629770, 2832060, 3068065, 3304070, 3346980, 3681678, 3904810, 3964884, 4295291, 4685772, 4956105, 5259540, 5857215, 6136130, 6608140, 7363356, 7809620, 8590582, 9204195, 9912210, 11714430, 12272260, 12885873, 17181164, 18408390, 19824420, 21476455, 23428860, 25771746, 36816780, 42952910, 51543492, 64429365, 85905820, 128858730, 257717460]

約数ペア:

[(1, 257717460), (2, 128858730), (3, 85905820), (4, 64429365), (5, 51543492), (6, 42952910), (7, 36816780), (10, 25771746), (11, 23428860), (12, 21476455), (13, 19824420), (14, 18408390), (15, 17181164), (20, 12885873), (21, 12272260), (22, 11714430), (26, 9912210), (28, 9204195), (30, 8590582), (33, 7809620), (35, 7363356), (39, 6608140), (42, 6136130), (44, 5857215), (49, 5259540), (52, 4956105), (55, 4685772), (60, 4295291), (65, 3964884), (66, 3904810), (70, 3681678), (77, 3346980), (78, 3304070), (84, 3068065), (91, 2832060), (98, 2629770), (105, 2454452), (110, 2342886), (130, 1982442), (132, 1952405), (140, 1840839), (143, 1802220), (147, 1753180), (154, 1673490), (156, 1652035), (165, 1561924), (182, 1416030), (195, 1321628), (196, 1314885), (210, 1227226), (220, 1171443), (231, 1115660), (245, 1051908), (260, 991221), (273, 944020), (286, 901110), (294, 876590), (308, 836745), (330, 780962), (364, 708015), (385, 669396), (390, 660814), (420, 613613), (429, 600740), (455, 566412), (462, 557830), (490, 525954), (539, 478140), (546, 472010), (572, 450555), (588, 438295), (613, 420420), (637, 404580), (660, 390481), (715, 360444), (735, 350636), (770, 334698), (780, 330407), (858, 300370), (910, 283206), (924, 278915), (980, 262977), (1001, 257460), (1078, 239070), (1092, 236005), (1155, 223132), (1226, 210210), (1274, 202290), (1365, 188804), (1430, 180222), (1470, 175318), (1540, 167349), (1617, 159380), (1716, 150185), (1820, 141603), (1839, 140140), (1911, 134860), (2002, 128730), (2145, 120148), (2156, 119535), (2310, 111566), (2452, 105105), (2548, 101145), (2695, 95628), (2730, 94402), (2860, 90111), (2940, 87659), (3003, 85820), (3065, 84084), (3185, 80916), (3234, 79690), (3678, 70070), (3822, 67430), (4004, 64365), (4290, 60074), (4291, 60060), (4620, 55783), (5005, 51492), (5390, 47814), (5460, 47201), (6006, 42910), (6130, 42042), (6370, 40458), (6468, 39845), (6743, 38220), (7007, 36780), (7356, 35035), (7644, 33715), (7969, 32340), (8085, 31876), (8580, 30037), (8582, 30030), (9195, 28028), (9555, 26972), (10010, 25746), (10780, 23907), (12012, 21455), (12260, 21021), (12740, 20229), (12873, 20020), (13486, 19110), (14014, 18390), (15015, 17164), (15938, 16170)]