20120800505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{283}}^1\times {\mathrm{6967}}^1$

素因数の和:7425

約数の個数: 32

約数和(自身を含む): 26264120064

約数和(自身を除く): 6143319559

約数列:

[1, 5, 13, 65, 157, 283, 785, 1415, 2041, 3679, 6967, 10205, 18395, 34835, 44431, 90571, 222155, 452855, 577603, 1093819, 1971661, 2888015, 5469095, 9858305, 14219647, 25631593, 71098235, 128157965, 309550777, 1547753885, 4024160101, 20120800505]

約数ペア:

[(1, 20120800505), (5, 4024160101), (13, 1547753885), (65, 309550777), (157, 128157965), (283, 71098235), (785, 25631593), (1415, 14219647), (2041, 9858305), (3679, 5469095), (6967, 2888015), (10205, 1971661), (18395, 1093819), (34835, 577603), (44431, 452855), (90571, 222155)]