2619640

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{829}}^1$

素因数の和:919

約数の個数: 32

約数和(自身を含む): 5976000

約数和(自身を除く): 3356360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 829, 1580, 1658, 3160, 3316, 4145, 6632, 8290, 16580, 33160, 65491, 130982, 261964, 327455, 523928, 654910, 1309820, 2619640]

約数ペア:

[(1, 2619640), (2, 1309820), (4, 654910), (5, 523928), (8, 327455), (10, 261964), (20, 130982), (40, 65491), (79, 33160), (158, 16580), (316, 8290), (395, 6632), (632, 4145), (790, 3316), (829, 3160), (1580, 1658)]