7855640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15107}}^1$

素因数の和:15131

約数の個数: 32

約数和(自身を含む): 19036080

約数和(自身を除く): 11180440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 15107, 30214, 60428, 75535, 120856, 151070, 196391, 302140, 392782, 604280, 785564, 981955, 1571128, 1963910, 3927820, 7855640]

約数ペア:

[(1, 7855640), (2, 3927820), (4, 1963910), (5, 1571128), (8, 981955), (10, 785564), (13, 604280), (20, 392782), (26, 302140), (40, 196391), (52, 151070), (65, 120856), (104, 75535), (130, 60428), (260, 30214), (520, 15107)]