2757640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{971}}^1$

素因数の和:1053

約数の個数: 32

約数和(自身を含む): 6298560

約数和(自身を除く): 3540920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 971, 1420, 1942, 2840, 3884, 4855, 7768, 9710, 19420, 38840, 68941, 137882, 275764, 344705, 551528, 689410, 1378820, 2757640]

約数ペア:

[(1, 2757640), (2, 1378820), (4, 689410), (5, 551528), (8, 344705), (10, 275764), (20, 137882), (40, 68941), (71, 38840), (142, 19420), (284, 9710), (355, 7768), (568, 4855), (710, 3884), (971, 2840), (1420, 1942)]