290056715

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{661}}^1$

素因数の和:879

約数の個数: 32

約数和(自身を含む): 386586816

約数和(自身を除く): 96530101

約数列:

[1, 5, 13, 43, 65, 157, 215, 559, 661, 785, 2041, 2795, 3305, 6751, 8593, 10205, 28423, 33755, 42965, 87763, 103777, 142115, 369499, 438815, 518885, 1349101, 1847495, 4462411, 6745505, 22312055, 58011343, 290056715]

約数ペア:

[(1, 290056715), (5, 58011343), (13, 22312055), (43, 6745505), (65, 4462411), (157, 1847495), (215, 1349101), (559, 518885), (661, 438815), (785, 369499), (2041, 142115), (2795, 103777), (3305, 87763), (6751, 42965), (8593, 33755), (10205, 28423)]