19715960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44809}}^1$

素因数の和:44831

約数の個数: 32

約数和(自身を含む): 48394800

約数和(自身を除く): 28678840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44809, 89618, 179236, 224045, 358472, 448090, 492899, 896180, 985798, 1792360, 1971596, 2464495, 3943192, 4928990, 9857980, 19715960]

約数ペア:

[(1, 19715960), (2, 9857980), (4, 4928990), (5, 3943192), (8, 2464495), (10, 1971596), (11, 1792360), (20, 985798), (22, 896180), (40, 492899), (44, 448090), (55, 358472), (88, 224045), (110, 179236), (220, 89618), (440, 44809)]