81771810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{63389}}^1$

素因数の和:63442

約数の個数: 32

約数和(自身を含む): 200819520

約数和(自身を除く): 119047710

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 63389, 126778, 190167, 316945, 380334, 633890, 950835, 1901670, 2725727, 5451454, 8177181, 13628635, 16354362, 27257270, 40885905, 81771810]

約数ペア:

[(1, 81771810), (2, 40885905), (3, 27257270), (5, 16354362), (6, 13628635), (10, 8177181), (15, 5451454), (30, 2725727), (43, 1901670), (86, 950835), (129, 633890), (215, 380334), (258, 316945), (430, 190167), (645, 126778), (1290, 63389)]