13680280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4817}}^1$

素因数の和:4899

約数の個数: 32

約数和(自身を含む): 31220640

約数和(自身を除く): 17540360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 4817, 9634, 19268, 24085, 38536, 48170, 96340, 192680, 342007, 684014, 1368028, 1710035, 2736056, 3420070, 6840140, 13680280]

約数ペア:

[(1, 13680280), (2, 6840140), (4, 3420070), (5, 2736056), (8, 1710035), (10, 1368028), (20, 684014), (40, 342007), (71, 192680), (142, 96340), (284, 48170), (355, 38536), (568, 24085), (710, 19268), (1420, 9634), (2840, 4817)]