20160795680

素因数分解:

$2^5\times 5^1\times {\mathrm{271}}^1\times {\mathrm{464963}}^1$

素因数の和:465249

約数の個数: 48

約数和(自身を含む): 47805738624

約数和(自身を除く): 27644942944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 271, 542, 1084, 1355, 2168, 2710, 4336, 5420, 8672, 10840, 21680, 43360, 464963, 929926, 1859852, 2324815, 3719704, 4649630, 7439408, 9299260, 14878816, 18598520, 37197040, 74394080, 126004973, 252009946, 504019892, 630024865, 1008039784, 1260049730, 2016079568, 2520099460, 4032159136, 5040198920, 10080397840, 20160795680]

約数ペア:

[(1, 20160795680), (2, 10080397840), (4, 5040198920), (5, 4032159136), (8, 2520099460), (10, 2016079568), (16, 1260049730), (20, 1008039784), (32, 630024865), (40, 504019892), (80, 252009946), (160, 126004973), (271, 74394080), (542, 37197040), (1084, 18598520), (1355, 14878816), (2168, 9299260), (2710, 7439408), (4336, 4649630), (5420, 3719704), (8672, 2324815), (10840, 1859852), (21680, 929926), (43360, 464963)]