28711125

素因数分解:

$3^3\times 5^3\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 54512640

約数和(自身を除く): 25801515

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 125, 135, 141, 181, 225, 235, 375, 423, 543, 675, 705, 905, 1125, 1175, 1269, 1629, 2115, 2715, 3375, 3525, 4525, 4887, 5875, 6345, 8145, 8507, 10575, 13575, 17625, 22625, 24435, 25521, 31725, 40725, 42535, 52875, 67875, 76563, 122175, 127605, 158625, 203625, 212675, 229689, 382815, 610875, 638025, 1063375, 1148445, 1914075, 3190125, 5742225, 9570375, 28711125]

約数ペア:

[(1, 28711125), (3, 9570375), (5, 5742225), (9, 3190125), (15, 1914075), (25, 1148445), (27, 1063375), (45, 638025), (47, 610875), (75, 382815), (125, 229689), (135, 212675), (141, 203625), (181, 158625), (225, 127605), (235, 122175), (375, 76563), (423, 67875), (543, 52875), (675, 42535), (705, 40725), (905, 31725), (1125, 25521), (1175, 24435), (1269, 22625), (1629, 17625), (2115, 13575), (2715, 10575), (3375, 8507), (3525, 8145), (4525, 6345), (4887, 5875)]