22139960

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1321}}^1$

素因数の和:1751

約数の個数: 32

約数和(自身を含む): 49971600

約数和(自身を除く): 27831640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1321, 1676, 2095, 2642, 3352, 4190, 5284, 6605, 8380, 10568, 13210, 16760, 26420, 52840, 553499, 1106998, 2213996, 2767495, 4427992, 5534990, 11069980, 22139960]

約数ペア:

[(1, 22139960), (2, 11069980), (4, 5534990), (5, 4427992), (8, 2767495), (10, 2213996), (20, 1106998), (40, 553499), (419, 52840), (838, 26420), (1321, 16760), (1676, 13210), (2095, 10568), (2642, 8380), (3352, 6605), (4190, 5284)]