6840140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4817}}^1$

素因数の和:4897

約数の個数: 24

約数和(自身を含む): 14569632

約数和(自身を除く): 7729492

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 4817, 9634, 19268, 24085, 48170, 96340, 342007, 684014, 1368028, 1710035, 3420070, 6840140]

約数ペア:

[(1, 6840140), (2, 3420070), (4, 1710035), (5, 1368028), (10, 684014), (20, 342007), (71, 96340), (142, 48170), (284, 24085), (355, 19268), (710, 9634), (1420, 4817)]