42165220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{51421}}^1$

素因数の和:51471

約数の個数: 24

約数和(自身を含む): 90708408

約数和(自身を除く): 48543188

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 51421, 102842, 205684, 257105, 514210, 1028420, 2108261, 4216522, 8433044, 10541305, 21082610, 42165220]

約数ペア:

[(1, 42165220), (2, 21082610), (4, 10541305), (5, 8433044), (10, 4216522), (20, 2108261), (41, 1028420), (82, 514210), (164, 257105), (205, 205684), (410, 102842), (820, 51421)]