19712912900

素因数分解:

$2^2\times 5^2\times {\mathrm{1049}}^1\times {\mathrm{187921}}^1$

素因数の和:188984

約数の個数: 36

約数和(自身を含む): 42818027700

約数和(自身を除く): 23105114800

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1049, 2098, 4196, 5245, 10490, 20980, 26225, 52450, 104900, 187921, 375842, 751684, 939605, 1879210, 3758420, 4698025, 9396050, 18792100, 197129129, 394258258, 788516516, 985645645, 1971291290, 3942582580, 4928228225, 9856456450, 19712912900]

約数ペア:

[(1, 19712912900), (2, 9856456450), (4, 4928228225), (5, 3942582580), (10, 1971291290), (20, 985645645), (25, 788516516), (50, 394258258), (100, 197129129), (1049, 18792100), (2098, 9396050), (4196, 4698025), (5245, 3758420), (10490, 1879210), (20980, 939605), (26225, 751684), (52450, 375842), (104900, 187921)]