398689825

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{281}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 545500800

約数和(自身を除く): 146810975

約数列:

[1, 5, 19, 25, 29, 95, 103, 145, 281, 475, 515, 551, 725, 1405, 1957, 2575, 2755, 2987, 5339, 7025, 8149, 9785, 13775, 14935, 26695, 28943, 40745, 48925, 56753, 74675, 133475, 144715, 154831, 203725, 283765, 549917, 723575, 774155, 839347, 1418825, 2749585, 3870775, 4196735, 13747925, 15947593, 20983675, 79737965, 398689825]

約数ペア:

[(1, 398689825), (5, 79737965), (19, 20983675), (25, 15947593), (29, 13747925), (95, 4196735), (103, 3870775), (145, 2749585), (281, 1418825), (475, 839347), (515, 774155), (551, 723575), (725, 549917), (1405, 283765), (1957, 203725), (2575, 154831), (2755, 144715), (2987, 133475), (5339, 74675), (7025, 56753), (8149, 48925), (9785, 40745), (13775, 28943), (14935, 26695)]