71357325

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 128116800

約数和(自身を除く): 56759475

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 163, 195, 325, 449, 489, 815, 975, 1347, 2119, 2245, 2445, 4075, 5837, 6357, 6735, 10595, 11225, 12225, 17511, 29185, 31785, 33675, 52975, 73187, 87555, 145925, 158925, 219561, 365935, 437775, 951431, 1097805, 1829675, 2854293, 4757155, 5489025, 14271465, 23785775, 71357325]

約数ペア:

[(1, 71357325), (3, 23785775), (5, 14271465), (13, 5489025), (15, 4757155), (25, 2854293), (39, 1829675), (65, 1097805), (75, 951431), (163, 437775), (195, 365935), (325, 219561), (449, 158925), (489, 145925), (815, 87555), (975, 73187), (1347, 52975), (2119, 33675), (2245, 31785), (2445, 29185), (4075, 17511), (5837, 12225), (6357, 11225), (6735, 10595)]