40042220

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10163}}^1$

素因数の和:10369

約数の個数: 24

約数和(自身を含む): 84523824

約数和(自身を除く): 44481604

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 10163, 20326, 40652, 50815, 101630, 203260, 2002111, 4004222, 8008444, 10010555, 20021110, 40042220]

約数ペア:

[(1, 40042220), (2, 20021110), (4, 10010555), (5, 8008444), (10, 4004222), (20, 2002111), (197, 203260), (394, 101630), (788, 50815), (985, 40652), (1970, 20326), (3940, 10163)]