261548790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{202751}}^1$

素因数の和:202804

約数の個数: 32

約数和(自身を含む): 642318336

約数和(自身を除く): 380769546

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 202751, 405502, 608253, 1013755, 1216506, 2027510, 3041265, 6082530, 8718293, 17436586, 26154879, 43591465, 52309758, 87182930, 130774395, 261548790]

約数ペア:

[(1, 261548790), (2, 130774395), (3, 87182930), (5, 52309758), (6, 43591465), (10, 26154879), (15, 17436586), (30, 8718293), (43, 6082530), (86, 3041265), (129, 2027510), (215, 1216506), (258, 1013755), (430, 608253), (645, 405502), (1290, 202751)]