721870040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{49991}}^1$

素因数の和:50040

約数の個数: 48

約数和(自身を含む): 1714225680

約数和(自身を除く): 992355640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3610, 7220, 14440, 49991, 99982, 199964, 249955, 399928, 499910, 949829, 999820, 1899658, 1999640, 3799316, 4749145, 7598632, 9498290, 18046751, 18996580, 36093502, 37993160, 72187004, 90233755, 144374008, 180467510, 360935020, 721870040]

約数ペア:

[(1, 721870040), (2, 360935020), (4, 180467510), (5, 144374008), (8, 90233755), (10, 72187004), (19, 37993160), (20, 36093502), (38, 18996580), (40, 18046751), (76, 9498290), (95, 7598632), (152, 4749145), (190, 3799316), (361, 1999640), (380, 1899658), (722, 999820), (760, 949829), (1444, 499910), (1805, 399928), (2888, 249955), (3610, 199964), (7220, 99982), (14440, 49991)]