131716720

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{10487}}^1$

素因数の和:10657

約数の個数: 40

約数和(自身を含む): 308221344

約数和(自身を除く): 176504624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 6280, 10487, 12560, 20974, 41948, 52435, 83896, 104870, 167792, 209740, 419480, 838960, 1646459, 3292918, 6585836, 8232295, 13171672, 16464590, 26343344, 32929180, 65858360, 131716720]

約数ペア:

[(1, 131716720), (2, 65858360), (4, 32929180), (5, 26343344), (8, 16464590), (10, 13171672), (16, 8232295), (20, 6585836), (40, 3292918), (80, 1646459), (157, 838960), (314, 419480), (628, 209740), (785, 167792), (1256, 104870), (1570, 83896), (2512, 52435), (3140, 41948), (6280, 20974), (10487, 12560)]