81295875

素因数分解:

$3^2\times 5^3\times {\mathrm{127}}^1\times {\mathrm{569}}^1$

素因数の和:717

約数の個数: 48

約数和(自身を含む): 147962880

約数和(自身を除く): 66667005

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 127, 225, 375, 381, 569, 635, 1125, 1143, 1707, 1905, 2845, 3175, 5121, 5715, 8535, 9525, 14225, 15875, 25605, 28575, 42675, 47625, 71125, 72263, 128025, 142875, 213375, 216789, 361315, 640125, 650367, 1083945, 1806575, 3251835, 5419725, 9032875, 16259175, 27098625, 81295875]

約数ペア:

[(1, 81295875), (3, 27098625), (5, 16259175), (9, 9032875), (15, 5419725), (25, 3251835), (45, 1806575), (75, 1083945), (125, 650367), (127, 640125), (225, 361315), (375, 216789), (381, 213375), (569, 142875), (635, 128025), (1125, 72263), (1143, 71125), (1707, 47625), (1905, 42675), (2845, 28575), (3175, 25605), (5121, 15875), (5715, 14225), (8535, 9525)]