20279568

素因数分解:

$2^4\times 3^1\times {\mathrm{647}}^1\times {\mathrm{653}}^1$

素因数の和:1311

約数の個数: 40

約数和(自身を含む): 52550208

約数和(自身を除く): 32270640

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 647, 653, 1294, 1306, 1941, 1959, 2588, 2612, 3882, 3918, 5176, 5224, 7764, 7836, 10352, 10448, 15528, 15672, 31056, 31344, 422491, 844982, 1267473, 1689964, 2534946, 3379928, 5069892, 6759856, 10139784, 20279568]

約数ペア:

[(1, 20279568), (2, 10139784), (3, 6759856), (4, 5069892), (6, 3379928), (8, 2534946), (12, 1689964), (16, 1267473), (24, 844982), (48, 422491), (647, 31344), (653, 31056), (1294, 15672), (1306, 15528), (1941, 10448), (1959, 10352), (2588, 7836), (2612, 7764), (3882, 5224), (3918, 5176)]