813864080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{328171}}^1$

素因数の和:328215

約数の個数: 40

約数和(自身を含む): 1953279744

約数和(自身を除く): 1139415664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 328171, 656342, 1312684, 1640855, 2625368, 3281710, 5250736, 6563420, 10173301, 13126840, 20346602, 26253680, 40693204, 50866505, 81386408, 101733010, 162772816, 203466020, 406932040, 813864080]

約数ペア:

[(1, 813864080), (2, 406932040), (4, 203466020), (5, 162772816), (8, 101733010), (10, 81386408), (16, 50866505), (20, 40693204), (31, 26253680), (40, 20346602), (62, 13126840), (80, 10173301), (124, 6563420), (155, 5250736), (248, 3281710), (310, 2625368), (496, 1640855), (620, 1312684), (1240, 656342), (2480, 328171)]