81515700

素因数分解:

$2^2\times 3^3\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1$

素因数の和:276

約数の個数: 288

約数和(自身を含む): 316646400

約数和(自身を除く): 235130700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 25, 27, 28, 30, 35, 36, 38, 42, 45, 50, 54, 57, 60, 63, 70, 75, 76, 84, 90, 95, 100, 105, 108, 114, 126, 133, 135, 140, 150, 171, 175, 180, 189, 190, 210, 225, 227, 228, 252, 266, 270, 285, 300, 315, 342, 350, 378, 380, 399, 420, 450, 454, 475, 513, 525, 532, 540, 570, 630, 665, 675, 681, 684, 700, 756, 798, 855, 900, 908, 945, 950, 1026, 1050, 1135, 1140, 1197, 1260, 1330, 1350, 1362, 1425, 1575, 1589, 1596, 1710, 1890, 1900, 1995, 2043, 2052, 2100, 2270, 2394, 2565, 2660, 2700, 2724, 2850, 3150, 3178, 3325, 3405, 3420, 3591, 3780, 3990, 4086, 4275, 4313, 4540, 4725, 4767, 4788, 5130, 5675, 5700, 5985, 6129, 6300, 6356, 6650, 6810, 7182, 7945, 7980, 8172, 8550, 8626, 9450, 9534, 9975, 10215, 10260, 11350, 11970, 12258, 12825, 12939, 13300, 13620, 14301, 14364, 15890, 17025, 17100, 17252, 17955, 18900, 19068, 19950, 20430, 21565, 22700, 23835, 23940, 24516, 25650, 25878, 28602, 29925, 30191, 30645, 31780, 34050, 35910, 38817, 39725, 39900, 40860, 42903, 43130, 47670, 51075, 51300, 51756, 57204, 59850, 60382, 61290, 64695, 68100, 71505, 71820, 77634, 79450, 85806, 86260, 89775, 90573, 95340, 102150, 107825, 116451, 119175, 119700, 120764, 122580, 129390, 143010, 150955, 153225, 155268, 158900, 171612, 179550, 181146, 194085, 204300, 214515, 215650, 232902, 238350, 258780, 271719, 286020, 301910, 306450, 323475, 357525, 359100, 362292, 388170, 429030, 431300, 452865, 465804, 476700, 543438, 582255, 603820, 612900, 646950, 715050, 754775, 776340, 815157, 858060, 905730, 970425, 1072575, 1086876, 1164510, 1293900, 1358595, 1430100, 1509550, 1630314, 1811460, 1940850, 2145150, 2264325, 2329020, 2717190, 2911275, 3019100, 3260628, 3881700, 4075785, 4290300, 4528650, 5434380, 5822550, 6792975, 8151570, 9057300, 11645100, 13585950, 16303140, 20378925, 27171900, 40757850, 81515700]

約数ペア:

[(1, 81515700), (2, 40757850), (3, 27171900), (4, 20378925), (5, 16303140), (6, 13585950), (7, 11645100), (9, 9057300), (10, 8151570), (12, 6792975), (14, 5822550), (15, 5434380), (18, 4528650), (19, 4290300), (20, 4075785), (21, 3881700), (25, 3260628), (27, 3019100), (28, 2911275), (30, 2717190), (35, 2329020), (36, 2264325), (38, 2145150), (42, 1940850), (45, 1811460), (50, 1630314), (54, 1509550), (57, 1430100), (60, 1358595), (63, 1293900), (70, 1164510), (75, 1086876), (76, 1072575), (84, 970425), (90, 905730), (95, 858060), (100, 815157), (105, 776340), (108, 754775), (114, 715050), (126, 646950), (133, 612900), (135, 603820), (140, 582255), (150, 543438), (171, 476700), (175, 465804), (180, 452865), (189, 431300), (190, 429030), (210, 388170), (225, 362292), (227, 359100), (228, 357525), (252, 323475), (266, 306450), (270, 301910), (285, 286020), (300, 271719), (315, 258780), (342, 238350), (350, 232902), (378, 215650), (380, 214515), (399, 204300), (420, 194085), (450, 181146), (454, 179550), (475, 171612), (513, 158900), (525, 155268), (532, 153225), (540, 150955), (570, 143010), (630, 129390), (665, 122580), (675, 120764), (681, 119700), (684, 119175), (700, 116451), (756, 107825), (798, 102150), (855, 95340), (900, 90573), (908, 89775), (945, 86260), (950, 85806), (1026, 79450), (1050, 77634), (1135, 71820), (1140, 71505), (1197, 68100), (1260, 64695), (1330, 61290), (1350, 60382), (1362, 59850), (1425, 57204), (1575, 51756), (1589, 51300), (1596, 51075), (1710, 47670), (1890, 43130), (1900, 42903), (1995, 40860), (2043, 39900), (2052, 39725), (2100, 38817), (2270, 35910), (2394, 34050), (2565, 31780), (2660, 30645), (2700, 30191), (2724, 29925), (2850, 28602), (3150, 25878), (3178, 25650), (3325, 24516), (3405, 23940), (3420, 23835), (3591, 22700), (3780, 21565), (3990, 20430), (4086, 19950), (4275, 19068), (4313, 18900), (4540, 17955), (4725, 17252), (4767, 17100), (4788, 17025), (5130, 15890), (5675, 14364), (5700, 14301), (5985, 13620), (6129, 13300), (6300, 12939), (6356, 12825), (6650, 12258), (6810, 11970), (7182, 11350), (7945, 10260), (7980, 10215), (8172, 9975), (8550, 9534), (8626, 9450)]