1261750685

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{1531}}^1$

素因数の和:1989

約数の個数: 32

約数和(自身を含む): 1688386560

約数和(自身を除く): 426635875

約数列:

[1, 5, 13, 31, 65, 155, 403, 409, 1531, 2015, 2045, 5317, 7655, 12679, 19903, 26585, 47461, 63395, 99515, 164827, 237305, 616993, 626179, 824135, 3084965, 3130895, 8140327, 19411549, 40701635, 97057745, 252350137, 1261750685]

約数ペア:

[(1, 1261750685), (5, 252350137), (13, 97057745), (31, 40701635), (65, 19411549), (155, 8140327), (403, 3130895), (409, 3084965), (1531, 824135), (2015, 626179), (2045, 616993), (5317, 237305), (7655, 164827), (12679, 99515), (19903, 63395), (26585, 47461)]