156770020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{64781}}^1$

素因数の和:64812

約数の個数: 36

約数和(自身を含む): 361872252

約数和(自身を除く): 205102232

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 64781, 129562, 259124, 323905, 647810, 712591, 1295620, 1425182, 2850364, 3562955, 7125910, 7838501, 14251820, 15677002, 31354004, 39192505, 78385010, 156770020]

約数ペア:

[(1, 156770020), (2, 78385010), (4, 39192505), (5, 31354004), (10, 15677002), (11, 14251820), (20, 7838501), (22, 7125910), (44, 3562955), (55, 2850364), (110, 1425182), (121, 1295620), (220, 712591), (242, 647810), (484, 323905), (605, 259124), (1210, 129562), (2420, 64781)]