278370620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1265321}}^1$

素因数の和:1265341

約数の個数: 24

約数和(自身を含む): 637722288

約数和(自身を除く): 359351668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1265321, 2530642, 5061284, 6326605, 12653210, 13918531, 25306420, 27837062, 55674124, 69592655, 139185310, 278370620]

約数ペア:

[(1, 278370620), (2, 139185310), (4, 69592655), (5, 55674124), (10, 27837062), (11, 25306420), (20, 13918531), (22, 12653210), (44, 6326605), (55, 5061284), (110, 2530642), (220, 1265321)]