40645040

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2579}}^1$

素因数の和:2789

約数の個数: 40

約数和(自身を含む): 95016240

約数和(自身を除く): 54371200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 2579, 3152, 3940, 5158, 7880, 10316, 12895, 15760, 20632, 25790, 41264, 51580, 103160, 206320, 508063, 1016126, 2032252, 2540315, 4064504, 5080630, 8129008, 10161260, 20322520, 40645040]

約数ペア:

[(1, 40645040), (2, 20322520), (4, 10161260), (5, 8129008), (8, 5080630), (10, 4064504), (16, 2540315), (20, 2032252), (40, 1016126), (80, 508063), (197, 206320), (394, 103160), (788, 51580), (985, 41264), (1576, 25790), (1970, 20632), (2579, 15760), (3152, 12895), (3940, 10316), (5158, 7880)]