78249040

素因数分解:

$2^4\times 5^1\times {\mathrm{978113}}^1$

素因数の和:978126

約数の個数: 20

約数和(自身を含む): 181929204

約数和(自身を除く): 103680164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 978113, 1956226, 3912452, 4890565, 7824904, 9781130, 15649808, 19562260, 39124520, 78249040]

約数ペア:

[(1, 78249040), (2, 39124520), (4, 19562260), (5, 15649808), (8, 9781130), (10, 7824904), (16, 4890565), (20, 3912452), (40, 1956226), (80, 978113)]