193976980

素因数分解:

$2^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{21601}}^1$

素因数の和:22059

約数の個数: 24

約数和(自身を含む): 408277800

約数和(自身を除く): 214300820

約数列:

[1, 2, 4, 5, 10, 20, 449, 898, 1796, 2245, 4490, 8980, 21601, 43202, 86404, 108005, 216010, 432020, 9698849, 19397698, 38795396, 48494245, 96988490, 193976980]

約数ペア:

[(1, 193976980), (2, 96988490), (4, 48494245), (5, 38795396), (10, 19397698), (20, 9698849), (449, 432020), (898, 216010), (1796, 108005), (2245, 86404), (4490, 43202), (8980, 21601)]