12459880

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{3943}}^1$

素因数の和:4033

約数の個数: 32

約数和(自身を含む): 28396800

約数和(自身を除く): 15936920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 3943, 7886, 15772, 19715, 31544, 39430, 78860, 157720, 311497, 622994, 1245988, 1557485, 2491976, 3114970, 6229940, 12459880]

約数ペア:

[(1, 12459880), (2, 6229940), (4, 3114970), (5, 2491976), (8, 1557485), (10, 1245988), (20, 622994), (40, 311497), (79, 157720), (158, 78860), (316, 39430), (395, 31544), (632, 19715), (790, 15772), (1580, 7886), (3160, 3943)]