80977221

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{499}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 134680000

約数和(自身を除く): 53702779

約数列:

[1, 3, 9, 13, 19, 39, 57, 73, 117, 171, 219, 247, 499, 657, 741, 949, 1387, 1497, 2223, 2847, 4161, 4491, 6487, 8541, 9481, 12483, 18031, 19461, 28443, 36427, 54093, 58383, 85329, 109281, 123253, 162279, 327843, 369759, 473551, 692113, 1109277, 1420653, 2076339, 4261959, 6229017, 8997469, 26992407, 80977221]

約数ペア:

[(1, 80977221), (3, 26992407), (9, 8997469), (13, 6229017), (19, 4261959), (39, 2076339), (57, 1420653), (73, 1109277), (117, 692113), (171, 473551), (219, 369759), (247, 327843), (499, 162279), (657, 123253), (741, 109281), (949, 85329), (1387, 58383), (1497, 54093), (2223, 36427), (2847, 28443), (4161, 19461), (4491, 18031), (6487, 12483), (8541, 9481)]