129657940

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{106277}}^1$

素因数の和:106347

約数の個数: 24

約数和(自身を含む): 276747912

約数和(自身を除く): 147089972

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 106277, 212554, 425108, 531385, 1062770, 2125540, 6482897, 12965794, 25931588, 32414485, 64828970, 129657940]

約数ペア:

[(1, 129657940), (2, 64828970), (4, 32414485), (5, 25931588), (10, 12965794), (20, 6482897), (61, 2125540), (122, 1062770), (244, 531385), (305, 425108), (610, 212554), (1220, 106277)]