19429960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44159}}^1$

素因数の和:44181

約数の個数: 32

約数和(自身を含む): 47692800

約数和(自身を除く): 28262840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44159, 88318, 176636, 220795, 353272, 441590, 485749, 883180, 971498, 1766360, 1942996, 2428745, 3885992, 4857490, 9714980, 19429960]

約数ペア:

[(1, 19429960), (2, 9714980), (4, 4857490), (5, 3885992), (8, 2428745), (10, 1942996), (11, 1766360), (20, 971498), (22, 883180), (40, 485749), (44, 441590), (55, 353272), (88, 220795), (110, 176636), (220, 88318), (440, 44159)]