65720590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{3637}}^1$

素因数の和:3796

約数の個数: 32

約数和(自身を含む): 128348640

約数和(自身を除く): 62628050

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 139, 278, 695, 1390, 1807, 3614, 3637, 7274, 9035, 18070, 18185, 36370, 47281, 94562, 236405, 472810, 505543, 1011086, 2527715, 5055430, 6572059, 13144118, 32860295, 65720590]

約数ペア:

[(1, 65720590), (2, 32860295), (5, 13144118), (10, 6572059), (13, 5055430), (26, 2527715), (65, 1011086), (130, 505543), (139, 472810), (278, 236405), (695, 94562), (1390, 47281), (1807, 36370), (3614, 18185), (3637, 18070), (7274, 9035)]