31689040

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3119}}^1$

素因数の和:3259

約数の個数: 40

約数和(自身を含む): 74280960

約数和(自身を除く): 42591920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 3119, 5080, 6238, 10160, 12476, 15595, 24952, 31190, 49904, 62380, 124760, 249520, 396113, 792226, 1584452, 1980565, 3168904, 3961130, 6337808, 7922260, 15844520, 31689040]

約数ペア:

[(1, 31689040), (2, 15844520), (4, 7922260), (5, 6337808), (8, 3961130), (10, 3168904), (16, 1980565), (20, 1584452), (40, 792226), (80, 396113), (127, 249520), (254, 124760), (508, 62380), (635, 49904), (1016, 31190), (1270, 24952), (2032, 15595), (2540, 12476), (3119, 10160), (5080, 6238)]