40039640

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{2389}}^1$

素因数の和:2819

約数の個数: 32

約数和(自身を含む): 90342000

約数和(自身を除く): 50302360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1676, 2095, 2389, 3352, 4190, 4778, 8380, 9556, 11945, 16760, 19112, 23890, 47780, 95560, 1000991, 2001982, 4003964, 5004955, 8007928, 10009910, 20019820, 40039640]

約数ペア:

[(1, 40039640), (2, 20019820), (4, 10009910), (5, 8007928), (8, 5004955), (10, 4003964), (20, 2001982), (40, 1000991), (419, 95560), (838, 47780), (1676, 23890), (2095, 19112), (2389, 16760), (3352, 11945), (4190, 9556), (4778, 8380)]