20199090920

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3976199}}^1$

素因数の和:3976337

約数の個数: 32

約数和(自身を含む): 45805824000

約数和(自身を除く): 25606733080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 3976199, 7952398, 15904796, 19880995, 31809592, 39761990, 79523980, 159047960, 504977273, 1009954546, 2019909092, 2524886365, 4039818184, 5049772730, 10099545460, 20199090920]

約数ペア:

[(1, 20199090920), (2, 10099545460), (4, 5049772730), (5, 4039818184), (8, 2524886365), (10, 2019909092), (20, 1009954546), (40, 504977273), (127, 159047960), (254, 79523980), (508, 39761990), (635, 31809592), (1016, 19880995), (1270, 15904796), (2540, 7952398), (5080, 3976199)]