71820245

素因数分解:

$5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{12589}}^1$

素因数の和:12764

約数の個数: 16

約数和(自身を含む): 99108480

約数和(自身を除く): 27288235

約数列:

[1, 5, 7, 35, 163, 815, 1141, 5705, 12589, 62945, 88123, 440615, 2052007, 10260035, 14364049, 71820245]

約数ペア:

[(1, 71820245), (5, 14364049), (7, 10260035), (35, 2052007), (163, 440615), (815, 88123), (1141, 62945), (5705, 12589)]