20631415

素因数分解:

$5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 29352960

約数和(自身を除く): 8721545

約数列:

[1, 5, 7, 35, 59, 97, 103, 295, 413, 485, 515, 679, 721, 2065, 3395, 3605, 5723, 6077, 9991, 28615, 30385, 40061, 42539, 49955, 69937, 200305, 212695, 349685, 589469, 2947345, 4126283, 20631415]

約数ペア:

[(1, 20631415), (5, 4126283), (7, 2947345), (35, 589469), (59, 349685), (97, 212695), (103, 200305), (295, 69937), (413, 49955), (485, 42539), (515, 40061), (679, 30385), (721, 28615), (2065, 9991), (3395, 6077), (3605, 5723)]