221613170

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{1721}}^1$

素因数の和:1970

約数の個数: 32

約数和(自身を含む): 406667520

約数和(自身を除く): 185054350

約数列:

[1, 2, 5, 10, 79, 158, 163, 326, 395, 790, 815, 1630, 1721, 3442, 8605, 12877, 17210, 25754, 64385, 128770, 135959, 271918, 280523, 561046, 679795, 1359590, 1402615, 2805230, 22161317, 44322634, 110806585, 221613170]

約数ペア:

[(1, 221613170), (2, 110806585), (5, 44322634), (10, 22161317), (79, 2805230), (158, 1402615), (163, 1359590), (326, 679795), (395, 561046), (790, 280523), (815, 271918), (1630, 135959), (1721, 128770), (3442, 64385), (8605, 25754), (12877, 17210)]