81637270

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{57089}}^1$

素因数の和:57120

約数の個数: 32

約数和(自身を含む): 172640160

約数和(自身を除く): 91002890

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 57089, 114178, 285445, 570890, 627979, 742157, 1255958, 1484314, 3139895, 3710785, 6279790, 7421570, 8163727, 16327454, 40818635, 81637270]

約数ペア:

[(1, 81637270), (2, 40818635), (5, 16327454), (10, 8163727), (11, 7421570), (13, 6279790), (22, 3710785), (26, 3139895), (55, 1484314), (65, 1255958), (110, 742157), (130, 627979), (143, 570890), (286, 285445), (715, 114178), (1430, 57089)]