20002590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2039}}^1$

素因数の和:2161

約数の個数: 48

約数和(自身を含む): 52509600

約数和(自身を除く): 32507010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 109, 218, 327, 545, 654, 981, 1090, 1635, 1962, 2039, 3270, 4078, 4905, 6117, 9810, 10195, 12234, 18351, 20390, 30585, 36702, 61170, 91755, 183510, 222251, 444502, 666753, 1111255, 1333506, 2000259, 2222510, 3333765, 4000518, 6667530, 10001295, 20002590]

約数ペア:

[(1, 20002590), (2, 10001295), (3, 6667530), (5, 4000518), (6, 3333765), (9, 2222510), (10, 2000259), (15, 1333506), (18, 1111255), (30, 666753), (45, 444502), (90, 222251), (109, 183510), (218, 91755), (327, 61170), (545, 36702), (654, 30585), (981, 20390), (1090, 18351), (1635, 12234), (1962, 10195), (2039, 9810), (3270, 6117), (4078, 4905)]