80626520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11927}}^1$

素因数の和:11964

約数の個数: 48

約数和(自身を含む): 196454160

約数和(自身を除く): 115827640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 11927, 23854, 47708, 59635, 95416, 119270, 155051, 238540, 310102, 477080, 620204, 775255, 1240408, 1550510, 2015663, 3101020, 4031326, 6202040, 8062652, 10078315, 16125304, 20156630, 40313260, 80626520]

約数ペア:

[(1, 80626520), (2, 40313260), (4, 20156630), (5, 16125304), (8, 10078315), (10, 8062652), (13, 6202040), (20, 4031326), (26, 3101020), (40, 2015663), (52, 1550510), (65, 1240408), (104, 775255), (130, 620204), (169, 477080), (260, 310102), (338, 238540), (520, 155051), (676, 119270), (845, 95416), (1352, 59635), (1690, 47708), (3380, 23854), (6760, 11927)]