66739406980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{42240131}}^1$

素因数の和:42240219

約数の個数: 24

約数和(自身を含む): 141926843520

約数和(自身を除く): 75187436540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 42240131, 84480262, 168960524, 211200655, 422401310, 844802620, 3336970349, 6673940698, 13347881396, 16684851745, 33369703490, 66739406980]

約数ペア:

[(1, 66739406980), (2, 33369703490), (4, 16684851745), (5, 13347881396), (10, 6673940698), (20, 3336970349), (79, 844802620), (158, 422401310), (316, 211200655), (395, 168960524), (790, 84480262), (1580, 42240131)]