126990410

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1\times {\mathrm{509}}^1$

素因数の和:986

約数の個数: 32

約数和(自身を含む): 233355600

約数和(自身を除く): 106365190

約数列:

[1, 2, 5, 10, 61, 122, 305, 409, 509, 610, 818, 1018, 2045, 2545, 4090, 5090, 24949, 31049, 49898, 62098, 124745, 155245, 208181, 249490, 310490, 416362, 1040905, 2081810, 12699041, 25398082, 63495205, 126990410]

約数ペア:

[(1, 126990410), (2, 63495205), (5, 25398082), (10, 12699041), (61, 2081810), (122, 1040905), (305, 416362), (409, 310490), (509, 249490), (610, 208181), (818, 155245), (1018, 124745), (2045, 62098), (2545, 49898), (4090, 31049), (5090, 24949)]