205817820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263869}}^1$

素因数の和:263894

約数の個数: 48

約数和(自身を含む): 620622240

約数和(自身を除く): 414804420

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, 263869, 527738, 791607, 1055476, 1319345, 1583214, 2638690, 3166428, 3430297, 3958035, 5277380, 6860594, 7916070, 10290891, 13721188, 15832140, 17151485, 20581782, 34302970, 41163564, 51454455, 68605940, 102908910, 205817820]

約数ペア:

[(1, 205817820), (2, 102908910), (3, 68605940), (4, 51454455), (5, 41163564), (6, 34302970), (10, 20581782), (12, 17151485), (13, 15832140), (15, 13721188), (20, 10290891), (26, 7916070), (30, 6860594), (39, 5277380), (52, 3958035), (60, 3430297), (65, 3166428), (78, 2638690), (130, 1583214), (156, 1319345), (195, 1055476), (260, 791607), (390, 527738), (780, 263869)]