20774768

素因数分解:

$2^4\times 7^1\times {\mathrm{251}}^1\times {\mathrm{739}}^1$

素因数の和:1005

約数の個数: 40

約数和(自身を含む): 46247040

約数和(自身を除く): 25472272

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 251, 502, 739, 1004, 1478, 1757, 2008, 2956, 3514, 4016, 5173, 5912, 7028, 10346, 11824, 14056, 20692, 28112, 41384, 82768, 185489, 370978, 741956, 1298423, 1483912, 2596846, 2967824, 5193692, 10387384, 20774768]

約数ペア:

[(1, 20774768), (2, 10387384), (4, 5193692), (7, 2967824), (8, 2596846), (14, 1483912), (16, 1298423), (28, 741956), (56, 370978), (112, 185489), (251, 82768), (502, 41384), (739, 28112), (1004, 20692), (1478, 14056), (1757, 11824), (2008, 10346), (2956, 7028), (3514, 5912), (4016, 5173)]