31245040

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{16981}}^1$

素因数の和:17017

約数の個数: 40

約数和(自身を含む): 75807648

約数和(自身を除く): 44562608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 16981, 33962, 67924, 84905, 135848, 169810, 271696, 339620, 390563, 679240, 781126, 1358480, 1562252, 1952815, 3124504, 3905630, 6249008, 7811260, 15622520, 31245040]

約数ペア:

[(1, 31245040), (2, 15622520), (4, 7811260), (5, 6249008), (8, 3905630), (10, 3124504), (16, 1952815), (20, 1562252), (23, 1358480), (40, 781126), (46, 679240), (80, 390563), (92, 339620), (115, 271696), (184, 169810), (230, 135848), (368, 84905), (460, 67924), (920, 33962), (1840, 16981)]