990102100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{631}}^1$

素因数の和:746

約数の個数: 144

約数和(自身を含む): 2488340736

約数和(自身を除く): 1498238636

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 71, 85, 100, 130, 142, 170, 221, 260, 284, 325, 340, 355, 425, 442, 631, 650, 710, 850, 884, 923, 1105, 1207, 1262, 1300, 1420, 1700, 1775, 1846, 2210, 2414, 2524, 3155, 3550, 3692, 4420, 4615, 4828, 5525, 6035, 6310, 7100, 8203, 9230, 10727, 11050, 12070, 12620, 15691, 15775, 16406, 18460, 21454, 22100, 23075, 24140, 30175, 31382, 31550, 32812, 41015, 42908, 44801, 46150, 53635, 60350, 62764, 63100, 78455, 82030, 89602, 92300, 107270, 120700, 139451, 156910, 164060, 179204, 205075, 214540, 224005, 268175, 278902, 313820, 392275, 410150, 448010, 536350, 557804, 582413, 697255, 761617, 784550, 820300, 896020, 1072700, 1120025, 1164826, 1394510, 1523234, 1569100, 2240050, 2329652, 2789020, 2912065, 3046468, 3486275, 3808085, 4480100, 5824130, 6972550, 7616170, 9901021, 11648260, 13945100, 14560325, 15232340, 19040425, 19802042, 29120650, 38080850, 39604084, 49505105, 58241300, 76161700, 99010210, 198020420, 247525525, 495051050, 990102100]

約数ペア:

[(1, 990102100), (2, 495051050), (4, 247525525), (5, 198020420), (10, 99010210), (13, 76161700), (17, 58241300), (20, 49505105), (25, 39604084), (26, 38080850), (34, 29120650), (50, 19802042), (52, 19040425), (65, 15232340), (68, 14560325), (71, 13945100), (85, 11648260), (100, 9901021), (130, 7616170), (142, 6972550), (170, 5824130), (221, 4480100), (260, 3808085), (284, 3486275), (325, 3046468), (340, 2912065), (355, 2789020), (425, 2329652), (442, 2240050), (631, 1569100), (650, 1523234), (710, 1394510), (850, 1164826), (884, 1120025), (923, 1072700), (1105, 896020), (1207, 820300), (1262, 784550), (1300, 761617), (1420, 697255), (1700, 582413), (1775, 557804), (1846, 536350), (2210, 448010), (2414, 410150), (2524, 392275), (3155, 313820), (3550, 278902), (3692, 268175), (4420, 224005), (4615, 214540), (4828, 205075), (5525, 179204), (6035, 164060), (6310, 156910), (7100, 139451), (8203, 120700), (9230, 107270), (10727, 92300), (11050, 89602), (12070, 82030), (12620, 78455), (15691, 63100), (15775, 62764), (16406, 60350), (18460, 53635), (21454, 46150), (22100, 44801), (23075, 42908), (24140, 41015), (30175, 32812), (31382, 31550)]