16390465

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 25930368

約数和(自身を除く): 9539903

約数列:

[1, 5, 7, 13, 17, 35, 65, 85, 91, 119, 163, 169, 221, 455, 595, 815, 845, 1105, 1141, 1183, 1547, 2119, 2771, 2873, 5705, 5915, 7735, 10595, 13855, 14365, 14833, 19397, 20111, 27547, 36023, 74165, 96985, 100555, 137735, 180115, 192829, 252161, 468299, 964145, 1260805, 2341495, 3278093, 16390465]

約数ペア:

[(1, 16390465), (5, 3278093), (7, 2341495), (13, 1260805), (17, 964145), (35, 468299), (65, 252161), (85, 192829), (91, 180115), (119, 137735), (163, 100555), (169, 96985), (221, 74165), (455, 36023), (595, 27547), (815, 20111), (845, 19397), (1105, 14833), (1141, 14365), (1183, 13855), (1547, 10595), (2119, 7735), (2771, 5915), (2873, 5705)]