40129240

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2579}}^1$

素因数の和:2979

約数の個数: 32

約数和(自身を含む): 90558000

約数和(自身を除く): 50428760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 2579, 3112, 3890, 5158, 7780, 10316, 12895, 15560, 20632, 25790, 51580, 103160, 1003231, 2006462, 4012924, 5016155, 8025848, 10032310, 20064620, 40129240]

約数ペア:

[(1, 40129240), (2, 20064620), (4, 10032310), (5, 8025848), (8, 5016155), (10, 4012924), (20, 2006462), (40, 1003231), (389, 103160), (778, 51580), (1556, 25790), (1945, 20632), (2579, 15560), (3112, 12895), (3890, 10316), (5158, 7780)]