2019703640

素因数分解:

$2^3\times 5^1\times {\mathrm{5641}}^1\times {\mathrm{8951}}^1$

素因数の和:14603

約数の個数: 32

約数和(自身を含む): 4545646560

約数和(自身を除く): 2525942920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5641, 8951, 11282, 17902, 22564, 28205, 35804, 44755, 45128, 56410, 71608, 89510, 112820, 179020, 225640, 358040, 50492591, 100985182, 201970364, 252462955, 403940728, 504925910, 1009851820, 2019703640]

約数ペア:

[(1, 2019703640), (2, 1009851820), (4, 504925910), (5, 403940728), (8, 252462955), (10, 201970364), (20, 100985182), (40, 50492591), (5641, 358040), (8951, 225640), (11282, 179020), (17902, 112820), (22564, 89510), (28205, 71608), (35804, 56410), (44755, 45128)]