80649220

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{17609}}^1$

素因数の和:17847

約数の個数: 24

約数和(自身を含む): 170112600

約数和(自身を除く): 89463380

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4580, 17609, 35218, 70436, 88045, 176090, 352180, 4032461, 8064922, 16129844, 20162305, 40324610, 80649220]

約数ペア:

[(1, 80649220), (2, 40324610), (4, 20162305), (5, 16129844), (10, 8064922), (20, 4032461), (229, 352180), (458, 176090), (916, 88045), (1145, 70436), (2290, 35218), (4580, 17609)]