18315160

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6449}}^1$

素因数の和:6531

約数の個数: 32

約数和(自身を含む): 41796000

約数和(自身を除く): 23480840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 6449, 12898, 25796, 32245, 51592, 64490, 128980, 257960, 457879, 915758, 1831516, 2289395, 3663032, 4578790, 9157580, 18315160]

約数ペア:

[(1, 18315160), (2, 9157580), (4, 4578790), (5, 3663032), (8, 2289395), (10, 1831516), (20, 915758), (40, 457879), (71, 257960), (142, 128980), (284, 64490), (355, 51592), (568, 32245), (710, 25796), (1420, 12898), (2840, 6449)]