20050485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 40653312

約数和(自身を除く): 20602827

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 37, 39, 65, 91, 105, 111, 185, 195, 259, 273, 397, 455, 481, 555, 777, 1191, 1295, 1365, 1443, 1985, 2405, 2779, 3367, 3885, 5161, 5955, 7215, 8337, 10101, 13895, 14689, 15483, 16835, 25805, 36127, 41685, 44067, 50505, 73445, 77415, 102823, 108381, 180635, 190957, 220335, 308469, 514115, 541905, 572871, 954785, 1336699, 1542345, 2864355, 4010097, 6683495, 20050485]

約数ペア:

[(1, 20050485), (3, 6683495), (5, 4010097), (7, 2864355), (13, 1542345), (15, 1336699), (21, 954785), (35, 572871), (37, 541905), (39, 514115), (65, 308469), (91, 220335), (105, 190957), (111, 180635), (185, 108381), (195, 102823), (259, 77415), (273, 73445), (397, 50505), (455, 44067), (481, 41685), (555, 36127), (777, 25805), (1191, 16835), (1295, 15483), (1365, 14689), (1443, 13895), (1985, 10101), (2405, 8337), (2779, 7215), (3367, 5955), (3885, 5161)]