289324220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{237151}}^1$

素因数の和:237221

約数の個数: 24

約数和(自身を含む): 617543808

約数和(自身を除く): 328219588

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 237151, 474302, 948604, 1185755, 2371510, 4743020, 14466211, 28932422, 57864844, 72331055, 144662110, 289324220]

約数ペア:

[(1, 289324220), (2, 144662110), (4, 72331055), (5, 57864844), (10, 28932422), (20, 14466211), (61, 4743020), (122, 2371510), (244, 1185755), (305, 948604), (610, 474302), (1220, 237151)]