40451980

素因数分解:

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

素因数の和:10473

約数の個数: 24

約数和(自身を含む): 85388688

約数和(自身を除く): 44936708

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 10267, 20534, 41068, 51335, 102670, 205340, 2022599, 4045198, 8090396, 10112995, 20225990, 40451980]

約数ペア:

[(1, 40451980), (2, 20225990), (4, 10112995), (5, 8090396), (10, 4045198), (20, 2022599), (197, 205340), (394, 102670), (788, 51335), (985, 41068), (1970, 20534), (3940, 10267)]