90360280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{31817}}^1$

素因数の和:31899

約数の個数: 32

約数和(自身を含む): 206180640

約数和(自身を除く): 115820360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 31817, 63634, 127268, 159085, 254536, 318170, 636340, 1272680, 2259007, 4518014, 9036028, 11295035, 18072056, 22590070, 45180140, 90360280]

約数ペア:

[(1, 90360280), (2, 45180140), (4, 22590070), (5, 18072056), (8, 11295035), (10, 9036028), (20, 4518014), (40, 2259007), (71, 1272680), (142, 636340), (284, 318170), (355, 254536), (568, 159085), (710, 127268), (1420, 63634), (2840, 31817)]