72788740

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{26183}}^1$

素因数の和:26331

約数の個数: 24

約数和(自身を含む): 153961920

約数和(自身を除く): 81173180

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 26183, 52366, 104732, 130915, 261830, 523660, 3639437, 7278874, 14557748, 18197185, 36394370, 72788740]

約数ペア:

[(1, 72788740), (2, 36394370), (4, 18197185), (5, 14557748), (10, 7278874), (20, 3639437), (139, 523660), (278, 261830), (556, 130915), (695, 104732), (1390, 52366), (2780, 26183)]