80903960

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10267}}^1$

素因数の和:10475

約数の個数: 32

約数和(自身を含む): 182975760

約数和(自身を除く): 102071800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 10267, 20534, 41068, 51335, 82136, 102670, 205340, 410680, 2022599, 4045198, 8090396, 10112995, 16180792, 20225990, 40451980, 80903960]

約数ペア:

[(1, 80903960), (2, 40451980), (4, 20225990), (5, 16180792), (8, 10112995), (10, 8090396), (20, 4045198), (40, 2022599), (197, 410680), (394, 205340), (788, 102670), (985, 82136), (1576, 51335), (1970, 41068), (3940, 20534), (7880, 10267)]