78009020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{125821}}^1$

素因数の和:125861

約数の個数: 24

約数和(自身を含む): 169104768

約数和(自身を除く): 91095748

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 125821, 251642, 503284, 629105, 1258210, 2516420, 3900451, 7800902, 15601804, 19502255, 39004510, 78009020]

約数ペア:

[(1, 78009020), (2, 39004510), (4, 19502255), (5, 15601804), (10, 7800902), (20, 3900451), (31, 2516420), (62, 1258210), (124, 629105), (155, 503284), (310, 251642), (620, 125821)]