81281590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{36779}}^1$

素因数の和:36816

約数の個数: 32

約数和(自身を含む): 166834080

約数和(自身を除く): 85552490

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 36779, 73558, 183895, 367790, 478127, 625243, 956254, 1250486, 2390635, 3126215, 4781270, 6252430, 8128159, 16256318, 40640795, 81281590]

約数ペア:

[(1, 81281590), (2, 40640795), (5, 16256318), (10, 8128159), (13, 6252430), (17, 4781270), (26, 3126215), (34, 2390635), (65, 1250486), (85, 956254), (130, 625243), (170, 478127), (221, 367790), (442, 183895), (1105, 73558), (2210, 36779)]