64647220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{643}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 148655808

約数和(自身を除く): 84008588

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 457, 643, 914, 1286, 1828, 2285, 2572, 3215, 4570, 5027, 6430, 7073, 9140, 10054, 12860, 14146, 20108, 25135, 28292, 35365, 50270, 70730, 100540, 141460, 293851, 587702, 1175404, 1469255, 2938510, 3232361, 5877020, 6464722, 12929444, 16161805, 32323610, 64647220]

約数ペア:

[(1, 64647220), (2, 32323610), (4, 16161805), (5, 12929444), (10, 6464722), (11, 5877020), (20, 3232361), (22, 2938510), (44, 1469255), (55, 1175404), (110, 587702), (220, 293851), (457, 141460), (643, 100540), (914, 70730), (1286, 50270), (1828, 35365), (2285, 28292), (2572, 25135), (3215, 20108), (4570, 14146), (5027, 12860), (6430, 10054), (7073, 9140)]