20056816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{457}}^1$

素因数の和:689

約数の個数: 40

約数和(自身を含む): 42139664

約数和(自身を除く): 22082848

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 211, 422, 457, 844, 914, 1688, 1828, 2743, 3376, 3656, 5486, 5941, 7312, 10972, 11882, 21944, 23764, 43888, 47528, 95056, 96427, 192854, 385708, 771416, 1253551, 1542832, 2507102, 5014204, 10028408, 20056816]

約数ペア:

[(1, 20056816), (2, 10028408), (4, 5014204), (8, 2507102), (13, 1542832), (16, 1253551), (26, 771416), (52, 385708), (104, 192854), (208, 96427), (211, 95056), (422, 47528), (457, 43888), (844, 23764), (914, 21944), (1688, 11882), (1828, 10972), (2743, 7312), (3376, 5941), (3656, 5486)]