12700840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{10949}}^1$

素因数の和:10989

約数の個数: 32

約数和(自身を含む): 29565000

約数和(自身を除く): 16864160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 10949, 21898, 43796, 54745, 87592, 109490, 218980, 317521, 437960, 635042, 1270084, 1587605, 2540168, 3175210, 6350420, 12700840]

約数ペア:

[(1, 12700840), (2, 6350420), (4, 3175210), (5, 2540168), (8, 1587605), (10, 1270084), (20, 635042), (29, 437960), (40, 317521), (58, 218980), (116, 109490), (145, 87592), (232, 54745), (290, 43796), (580, 21898), (1160, 10949)]