19927580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{229}}^2$

素因数の和:486

約数の個数: 36

約数和(自身を含む): 44243640

約数和(自身を除く): 24316060

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 229, 380, 458, 916, 1145, 2290, 4351, 4580, 8702, 17404, 21755, 43510, 52441, 87020, 104882, 209764, 262205, 524410, 996379, 1048820, 1992758, 3985516, 4981895, 9963790, 19927580]

約数ペア:

[(1, 19927580), (2, 9963790), (4, 4981895), (5, 3985516), (10, 1992758), (19, 1048820), (20, 996379), (38, 524410), (76, 262205), (95, 209764), (190, 104882), (229, 87020), (380, 52441), (458, 43510), (916, 21755), (1145, 17404), (2290, 8702), (4351, 4580)]