20880872

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{283}}^1\times {\mathrm{401}}^1$

素因数の和:713

約数の個数: 32

約数和(自身を含む): 41100480

約数和(自身を除く): 20219608

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 283, 401, 566, 802, 1132, 1604, 2264, 3208, 6509, 9223, 13018, 18446, 26036, 36892, 52072, 73784, 113483, 226966, 453932, 907864, 2610109, 5220218, 10440436, 20880872]

約数ペア:

[(1, 20880872), (2, 10440436), (4, 5220218), (8, 2610109), (23, 907864), (46, 453932), (92, 226966), (184, 113483), (283, 73784), (401, 52072), (566, 36892), (802, 26036), (1132, 18446), (1604, 13018), (2264, 9223), (3208, 6509)]