80178540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{102793}}^1$

素因数の和:102818

約数の個数: 48

約数和(自身を含む): 241771488

約数和(自身を除く): 161592948

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, 102793, 205586, 308379, 411172, 513965, 616758, 1027930, 1233516, 1336309, 1541895, 2055860, 2672618, 3083790, 4008927, 5345236, 6167580, 6681545, 8017854, 13363090, 16035708, 20044635, 26726180, 40089270, 80178540]

約数ペア:

[(1, 80178540), (2, 40089270), (3, 26726180), (4, 20044635), (5, 16035708), (6, 13363090), (10, 8017854), (12, 6681545), (13, 6167580), (15, 5345236), (20, 4008927), (26, 3083790), (30, 2672618), (39, 2055860), (52, 1541895), (60, 1336309), (65, 1233516), (78, 1027930), (130, 616758), (156, 513965), (195, 411172), (260, 308379), (390, 205586), (780, 102793)]