126728680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{243709}}^1$

素因数の和:243733

約数の個数: 32

約数和(自身を含む): 307074600

約数和(自身を除く): 180345920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 243709, 487418, 974836, 1218545, 1949672, 2437090, 3168217, 4874180, 6336434, 9748360, 12672868, 15841085, 25345736, 31682170, 63364340, 126728680]

約数ペア:

[(1, 126728680), (2, 63364340), (4, 31682170), (5, 25345736), (8, 15841085), (10, 12672868), (13, 9748360), (20, 6336434), (26, 4874180), (40, 3168217), (52, 2437090), (65, 1949672), (104, 1218545), (130, 974836), (260, 487418), (520, 243709)]