315769040

素因数分解:

$2^4\times 5^1\times {\mathrm{3947113}}^1$

素因数の和:3947126

約数の個数: 20

約数和(自身を含む): 734163204

約数和(自身を除く): 418394164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3947113, 7894226, 15788452, 19735565, 31576904, 39471130, 63153808, 78942260, 157884520, 315769040]

約数ペア:

[(1, 315769040), (2, 157884520), (4, 78942260), (5, 63153808), (8, 39471130), (10, 31576904), (16, 19735565), (20, 15788452), (40, 7894226), (80, 3947113)]