20783091760

素因数分解:

$2^4\times 5^1\times {\mathrm{7331}}^1\times {\mathrm{35437}}^1$

素因数の和:42781

約数の個数: 40

約数和(自身を含む): 48328643376

約数和(自身を除く): 27545551616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 7331, 14662, 29324, 35437, 36655, 58648, 70874, 73310, 117296, 141748, 146620, 177185, 283496, 293240, 354370, 566992, 586480, 708740, 1417480, 2834960, 259788647, 519577294, 1039154588, 1298943235, 2078309176, 2597886470, 4156618352, 5195772940, 10391545880, 20783091760]

約数ペア:

[(1, 20783091760), (2, 10391545880), (4, 5195772940), (5, 4156618352), (8, 2597886470), (10, 2078309176), (16, 1298943235), (20, 1039154588), (40, 519577294), (80, 259788647), (7331, 2834960), (14662, 1417480), (29324, 708740), (35437, 586480), (36655, 566992), (58648, 354370), (70874, 293240), (73310, 283496), (117296, 177185), (141748, 146620)]