15868040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20879}}^1$

素因数の和:20909

約数の個数: 32

約数和(自身を含む): 37584000

約数和(自身を除く): 21715960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 20879, 41758, 83516, 104395, 167032, 208790, 396701, 417580, 793402, 835160, 1586804, 1983505, 3173608, 3967010, 7934020, 15868040]

約数ペア:

[(1, 15868040), (2, 7934020), (4, 3967010), (5, 3173608), (8, 1983505), (10, 1586804), (19, 835160), (20, 793402), (38, 417580), (40, 396701), (76, 208790), (95, 167032), (152, 104395), (190, 83516), (380, 41758), (760, 20879)]