1921558860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{2111}}^1$

素因数の和:2528

約数の個数: 144

約数和(自身を含む): 6296209920

約数和(自身を除く): 4374651060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 389, 390, 468, 585, 778, 780, 1167, 1170, 1556, 1945, 2111, 2334, 2340, 3501, 3890, 4222, 4668, 5057, 5835, 6333, 7002, 7780, 8444, 10114, 10555, 11670, 12666, 14004, 15171, 17505, 18999, 20228, 21110, 23340, 25285, 25332, 27443, 30342, 31665, 35010, 37998, 42220, 45513, 50570, 54886, 60684, 63330, 70020, 75855, 75996, 82329, 91026, 94995, 101140, 109772, 126660, 137215, 151710, 164658, 182052, 189990, 227565, 246987, 274430, 303420, 329316, 379980, 411645, 455130, 493974, 548860, 821179, 823290, 910260, 987948, 1234935, 1642358, 1646580, 2463537, 2469870, 3284716, 4105895, 4927074, 4939740, 7390611, 8211790, 9854148, 10675327, 12317685, 14781222, 16423580, 21350654, 24635370, 29562444, 32025981, 36953055, 42701308, 49270740, 53376635, 64051962, 73906110, 96077943, 106753270, 128103924, 147812220, 160129905, 192155886, 213506540, 320259810, 384311772, 480389715, 640519620, 960779430, 1921558860]

約数ペア:

[(1, 1921558860), (2, 960779430), (3, 640519620), (4, 480389715), (5, 384311772), (6, 320259810), (9, 213506540), (10, 192155886), (12, 160129905), (13, 147812220), (15, 128103924), (18, 106753270), (20, 96077943), (26, 73906110), (30, 64051962), (36, 53376635), (39, 49270740), (45, 42701308), (52, 36953055), (60, 32025981), (65, 29562444), (78, 24635370), (90, 21350654), (117, 16423580), (130, 14781222), (156, 12317685), (180, 10675327), (195, 9854148), (234, 8211790), (260, 7390611), (389, 4939740), (390, 4927074), (468, 4105895), (585, 3284716), (778, 2469870), (780, 2463537), (1167, 1646580), (1170, 1642358), (1556, 1234935), (1945, 987948), (2111, 910260), (2334, 823290), (2340, 821179), (3501, 548860), (3890, 493974), (4222, 455130), (4668, 411645), (5057, 379980), (5835, 329316), (6333, 303420), (7002, 274430), (7780, 246987), (8444, 227565), (10114, 189990), (10555, 182052), (11670, 164658), (12666, 151710), (14004, 137215), (15171, 126660), (17505, 109772), (18999, 101140), (20228, 94995), (21110, 91026), (23340, 82329), (25285, 75996), (25332, 75855), (27443, 70020), (30342, 63330), (31665, 60684), (35010, 54886), (37998, 50570), (42220, 45513)]