25380495

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{409}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 50656320

約数和(自身を除く): 25275825

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 197, 315, 409, 591, 985, 1227, 1379, 1773, 2045, 2863, 2955, 3681, 4137, 6135, 6895, 8589, 8865, 12411, 14315, 18405, 20685, 25767, 42945, 62055, 80573, 128835, 241719, 402865, 564011, 725157, 1208595, 1692033, 2820055, 3625785, 5076099, 8460165, 25380495]

約数ペア:

[(1, 25380495), (3, 8460165), (5, 5076099), (7, 3625785), (9, 2820055), (15, 1692033), (21, 1208595), (35, 725157), (45, 564011), (63, 402865), (105, 241719), (197, 128835), (315, 80573), (409, 62055), (591, 42945), (985, 25767), (1227, 20685), (1379, 18405), (1773, 14315), (2045, 12411), (2863, 8865), (2955, 8589), (3681, 6895), (4137, 6135)]