991098830

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{499}}^1$

素因数の和:729

約数の個数: 64

約数和(自身を含む): 1900800000

約数和(自身を除く): 909701170

約数列:

[1, 2, 5, 10, 31, 43, 62, 86, 149, 155, 215, 298, 310, 430, 499, 745, 998, 1333, 1490, 2495, 2666, 4619, 4990, 6407, 6665, 9238, 12814, 13330, 15469, 21457, 23095, 30938, 32035, 42914, 46190, 64070, 74351, 77345, 107285, 148702, 154690, 198617, 214570, 371755, 397234, 665167, 743510, 993085, 1330334, 1986170, 2304881, 3197093, 3325835, 4609762, 6394186, 6651670, 11524405, 15985465, 23048810, 31970930, 99109883, 198219766, 495549415, 991098830]

約数ペア:

[(1, 991098830), (2, 495549415), (5, 198219766), (10, 99109883), (31, 31970930), (43, 23048810), (62, 15985465), (86, 11524405), (149, 6651670), (155, 6394186), (215, 4609762), (298, 3325835), (310, 3197093), (430, 2304881), (499, 1986170), (745, 1330334), (998, 993085), (1333, 743510), (1490, 665167), (2495, 397234), (2666, 371755), (4619, 214570), (4990, 198617), (6407, 154690), (6665, 148702), (9238, 107285), (12814, 77345), (13330, 74351), (15469, 64070), (21457, 46190), (23095, 42914), (30938, 32035)]