2878760

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{911}}^1$

素因数の和:1001

約数の個数: 32

約数和(自身を含む): 6566400

約数和(自身を除く): 3687640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 911, 1580, 1822, 3160, 3644, 4555, 7288, 9110, 18220, 36440, 71969, 143938, 287876, 359845, 575752, 719690, 1439380, 2878760]

約数ペア:

[(1, 2878760), (2, 1439380), (4, 719690), (5, 575752), (8, 359845), (10, 287876), (20, 143938), (40, 71969), (79, 36440), (158, 18220), (316, 9110), (395, 7288), (632, 4555), (790, 3644), (911, 3160), (1580, 1822)]