20559460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{3557}}^1$

素因数の和:3600

約数の個数: 36

約数和(自身を含む): 45876852

約数和(自身を除く): 25317392

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 3557, 5780, 7114, 14228, 17785, 35570, 60469, 71140, 120938, 241876, 302345, 604690, 1027973, 1209380, 2055946, 4111892, 5139865, 10279730, 20559460]

約数ペア:

[(1, 20559460), (2, 10279730), (4, 5139865), (5, 4111892), (10, 2055946), (17, 1209380), (20, 1027973), (34, 604690), (68, 302345), (85, 241876), (170, 120938), (289, 71140), (340, 60469), (578, 35570), (1156, 17785), (1445, 14228), (2890, 7114), (3557, 5780)]