21886160

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{3463}}^1$

素因数の和:3555

約数の個数: 40

約数和(自身を含む): 51544320

約数和(自身を除く): 29658160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 3463, 6320, 6926, 13852, 17315, 27704, 34630, 55408, 69260, 138520, 273577, 277040, 547154, 1094308, 1367885, 2188616, 2735770, 4377232, 5471540, 10943080, 21886160]

約数ペア:

[(1, 21886160), (2, 10943080), (4, 5471540), (5, 4377232), (8, 2735770), (10, 2188616), (16, 1367885), (20, 1094308), (40, 547154), (79, 277040), (80, 273577), (158, 138520), (316, 69260), (395, 55408), (632, 34630), (790, 27704), (1264, 17315), (1580, 13852), (3160, 6926), (3463, 6320)]