20795540

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{6379}}^1$

素因数の和:6551

約数の個数: 24

約数和(自身を含む): 43945440

約数和(自身を除く): 23149900

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 6379, 12758, 25516, 31895, 63790, 127580, 1039777, 2079554, 4159108, 5198885, 10397770, 20795540]

約数ペア:

[(1, 20795540), (2, 10397770), (4, 5198885), (5, 4159108), (10, 2079554), (20, 1039777), (163, 127580), (326, 63790), (652, 31895), (815, 25516), (1630, 12758), (3260, 6379)]