156948426220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{128646251}}^1$

素因数の和:128646321

約数の個数: 24

約数和(自身を含む): 334994840208

約数和(自身を除く): 178046413988

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 128646251, 257292502, 514585004, 643231255, 1286462510, 2572925020, 7847421311, 15694842622, 31389685244, 39237106555, 78474213110, 156948426220]

約数ペア:

[(1, 156948426220), (2, 78474213110), (4, 39237106555), (5, 31389685244), (10, 15694842622), (20, 7847421311), (61, 2572925020), (122, 1286462510), (244, 643231255), (305, 514585004), (610, 257292502), (1220, 128646251)]