12749020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8069}}^1$

素因数の和:8157

約数の個数: 24

約数和(自身を含む): 27115200

約数和(自身を除く): 14366180

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 8069, 16138, 32276, 40345, 80690, 161380, 637451, 1274902, 2549804, 3187255, 6374510, 12749020]

約数ペア:

[(1, 12749020), (2, 6374510), (4, 3187255), (5, 2549804), (10, 1274902), (20, 637451), (79, 161380), (158, 80690), (316, 40345), (395, 32276), (790, 16138), (1580, 8069)]