77021815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1621}}^1$

素因数の和:1699

約数の個数: 32

約数和(自身を含む): 107908416

約数和(自身を除く): 30886601

約数列:

[1, 5, 13, 17, 43, 65, 85, 215, 221, 559, 731, 1105, 1621, 2795, 3655, 8105, 9503, 21073, 27557, 47515, 69703, 105365, 137785, 348515, 358241, 906139, 1184951, 1791205, 4530695, 5924755, 15404363, 77021815]

約数ペア:

[(1, 77021815), (5, 15404363), (13, 5924755), (17, 4530695), (43, 1791205), (65, 1184951), (85, 906139), (215, 358241), (221, 348515), (559, 137785), (731, 105365), (1105, 69703), (1621, 47515), (2795, 27557), (3655, 21073), (8105, 9503)]