18617820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23869}}^1$

素因数の和:23894

約数の個数: 48

約数和(自身を含む): 56142240

約数和(自身を除く): 37524420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 23869, 47738, 71607, 95476, 119345, 143214, 238690, 286428, 310297, 358035, 477380, 620594, 716070, 930891, 1241188, 1432140, 1551485, 1861782, 3102970, 3723564, 4654455, 6205940, 9308910, 18617820]

約数ペア:

[(1, 18617820), (2, 9308910), (3, 6205940), (4, 4654455), (5, 3723564), (6, 3102970), (10, 1861782), (12, 1551485), (13, 1432140), (15, 1241188), (20, 930891), (26, 716070), (30, 620594), (39, 477380), (52, 358035), (60, 310297), (65, 286428), (78, 238690), (130, 143214), (156, 119345), (195, 95476), (260, 71607), (390, 47738), (780, 23869)]