22788740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{87649}}^1$

素因数の和:87671

約数の個数: 24

約数和(自身を含む): 51538200

約数和(自身を除く): 28749460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 87649, 175298, 350596, 438245, 876490, 1139437, 1752980, 2278874, 4557748, 5697185, 11394370, 22788740]

約数ペア:

[(1, 22788740), (2, 11394370), (4, 5697185), (5, 4557748), (10, 2278874), (13, 1752980), (20, 1139437), (26, 876490), (52, 438245), (65, 350596), (130, 175298), (260, 87649)]