2655640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5107}}^1$

素因数の和:5131

約数の個数: 32

約数和(自身を含む): 6436080

約数和(自身を除く): 3780440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 5107, 10214, 20428, 25535, 40856, 51070, 66391, 102140, 132782, 204280, 265564, 331955, 531128, 663910, 1327820, 2655640]

約数ペア:

[(1, 2655640), (2, 1327820), (4, 663910), (5, 531128), (8, 331955), (10, 265564), (13, 204280), (20, 132782), (26, 102140), (40, 66391), (52, 51070), (65, 40856), (104, 25535), (130, 20428), (260, 10214), (520, 5107)]