12939075

素因数分解:

$3^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{661}}^1$

素因数の和:709

約数の個数: 48

約数和(自身を含む): 24626400

約数和(自身を除く): 11687325

約数列:

[1, 3, 5, 9, 15, 25, 27, 29, 45, 75, 87, 135, 145, 225, 261, 435, 661, 675, 725, 783, 1305, 1983, 2175, 3305, 3915, 5949, 6525, 9915, 16525, 17847, 19169, 19575, 29745, 49575, 57507, 89235, 95845, 148725, 172521, 287535, 446175, 479225, 517563, 862605, 1437675, 2587815, 4313025, 12939075]

約数ペア:

[(1, 12939075), (3, 4313025), (5, 2587815), (9, 1437675), (15, 862605), (25, 517563), (27, 479225), (29, 446175), (45, 287535), (75, 172521), (87, 148725), (135, 95845), (145, 89235), (225, 57507), (261, 49575), (435, 29745), (661, 19575), (675, 19169), (725, 17847), (783, 16525), (1305, 9915), (1983, 6525), (2175, 5949), (3305, 3915)]