8401640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 20684160

約数和(自身を除く): 12282520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 107, 130, 151, 214, 260, 302, 428, 520, 535, 604, 755, 856, 1070, 1208, 1391, 1510, 1963, 2140, 2782, 3020, 3926, 4280, 5564, 6040, 6955, 7852, 9815, 11128, 13910, 15704, 16157, 19630, 27820, 32314, 39260, 55640, 64628, 78520, 80785, 129256, 161570, 210041, 323140, 420082, 646280, 840164, 1050205, 1680328, 2100410, 4200820, 8401640]

約数ペア:

[(1, 8401640), (2, 4200820), (4, 2100410), (5, 1680328), (8, 1050205), (10, 840164), (13, 646280), (20, 420082), (26, 323140), (40, 210041), (52, 161570), (65, 129256), (104, 80785), (107, 78520), (130, 64628), (151, 55640), (214, 39260), (260, 32314), (302, 27820), (428, 19630), (520, 16157), (535, 15704), (604, 13910), (755, 11128), (856, 9815), (1070, 7852), (1208, 6955), (1391, 6040), (1510, 5564), (1963, 4280), (2140, 3926), (2782, 3020)]