78917980

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{17231}}^1$

素因数の和:17469

約数の個数: 24

約数和(自身を含む): 166461120

約数和(自身を除く): 87543140

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4580, 17231, 34462, 68924, 86155, 172310, 344620, 3945899, 7891798, 15783596, 19729495, 39458990, 78917980]

約数ペア:

[(1, 78917980), (2, 39458990), (4, 19729495), (5, 15783596), (10, 7891798), (20, 3945899), (229, 344620), (458, 172310), (916, 86155), (1145, 68924), (2290, 34462), (4580, 17231)]