30781725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 55454784

約数和(自身を除く): 24673059

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 131, 195, 241, 325, 393, 655, 723, 975, 1205, 1703, 1965, 3133, 3275, 3615, 5109, 6025, 8515, 9399, 9825, 15665, 18075, 25545, 31571, 42575, 46995, 78325, 94713, 127725, 157855, 234975, 410423, 473565, 789275, 1231269, 2052115, 2367825, 6156345, 10260575, 30781725]

約数ペア:

[(1, 30781725), (3, 10260575), (5, 6156345), (13, 2367825), (15, 2052115), (25, 1231269), (39, 789275), (65, 473565), (75, 410423), (131, 234975), (195, 157855), (241, 127725), (325, 94713), (393, 78325), (655, 46995), (723, 42575), (975, 31571), (1205, 25545), (1703, 18075), (1965, 15665), (3133, 9825), (3275, 9399), (3615, 8515), (5109, 6025)]