266664820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{325201}}^1$

素因数の和:325251

約数の個数: 24

約数和(自身を含む): 573656328

約数和(自身を除く): 306991508

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 325201, 650402, 1300804, 1626005, 3252010, 6504020, 13333241, 26666482, 53332964, 66666205, 133332410, 266664820]

約数ペア:

[(1, 266664820), (2, 133332410), (4, 66666205), (5, 53332964), (10, 26666482), (20, 13333241), (41, 6504020), (82, 3252010), (164, 1626005), (205, 1300804), (410, 650402), (820, 325201)]