20104660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{277}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 44835840

約数和(自身を除く): 24731180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 191, 277, 380, 382, 554, 764, 955, 1108, 1385, 1910, 2770, 3629, 3820, 5263, 5540, 7258, 10526, 14516, 18145, 21052, 26315, 36290, 52630, 52907, 72580, 105260, 105814, 211628, 264535, 529070, 1005233, 1058140, 2010466, 4020932, 5026165, 10052330, 20104660]

約数ペア:

[(1, 20104660), (2, 10052330), (4, 5026165), (5, 4020932), (10, 2010466), (19, 1058140), (20, 1005233), (38, 529070), (76, 264535), (95, 211628), (190, 105814), (191, 105260), (277, 72580), (380, 52907), (382, 52630), (554, 36290), (764, 26315), (955, 21052), (1108, 18145), (1385, 14516), (1910, 10526), (2770, 7258), (3629, 5540), (3820, 5263)]