17727820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1321}}^1$

素因数の和:1402

約数の個数: 48

約数和(自身を含む): 41309856

約数和(自身を除く): 23582036

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1321, 1342, 2642, 2684, 3355, 5284, 6605, 6710, 13210, 13420, 14531, 26420, 29062, 58124, 72655, 80581, 145310, 161162, 290620, 322324, 402905, 805810, 886391, 1611620, 1772782, 3545564, 4431955, 8863910, 17727820]

約数ペア:

[(1, 17727820), (2, 8863910), (4, 4431955), (5, 3545564), (10, 1772782), (11, 1611620), (20, 886391), (22, 805810), (44, 402905), (55, 322324), (61, 290620), (110, 161162), (122, 145310), (220, 80581), (244, 72655), (305, 58124), (610, 29062), (671, 26420), (1220, 14531), (1321, 13420), (1342, 13210), (2642, 6710), (2684, 6605), (3355, 5284)]