9639220

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7901}}^1$

素因数の和:7971

約数の個数: 24

約数和(自身を含む): 20576808

約数和(自身を除く): 10937588

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 7901, 15802, 31604, 39505, 79010, 158020, 481961, 963922, 1927844, 2409805, 4819610, 9639220]

約数ペア:

[(1, 9639220), (2, 4819610), (4, 2409805), (5, 1927844), (10, 963922), (20, 481961), (61, 158020), (122, 79010), (244, 39505), (305, 31604), (610, 15802), (1220, 7901)]