28691260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{677}}^1$

素因数の和:862

約数の個数: 48

約数和(自身を含む): 65380896

約数和(自身を除く): 36689636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 163, 260, 326, 652, 677, 815, 1354, 1630, 2119, 2708, 3260, 3385, 4238, 6770, 8476, 8801, 10595, 13540, 17602, 21190, 35204, 42380, 44005, 88010, 110351, 176020, 220702, 441404, 551755, 1103510, 1434563, 2207020, 2869126, 5738252, 7172815, 14345630, 28691260]

約数ペア:

[(1, 28691260), (2, 14345630), (4, 7172815), (5, 5738252), (10, 2869126), (13, 2207020), (20, 1434563), (26, 1103510), (52, 551755), (65, 441404), (130, 220702), (163, 176020), (260, 110351), (326, 88010), (652, 44005), (677, 42380), (815, 35204), (1354, 21190), (1630, 17602), (2119, 13540), (2708, 10595), (3260, 8801), (3385, 8476), (4238, 6770)]