2102552020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1181209}}^1$

素因数の和:1181307

約数の個数: 24

約数和(自身を含む): 4464973800

約数和(自身を除く): 2362421780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 1181209, 2362418, 4724836, 5906045, 11812090, 23624180, 105127601, 210255202, 420510404, 525638005, 1051276010, 2102552020]

約数ペア:

[(1, 2102552020), (2, 1051276010), (4, 525638005), (5, 420510404), (10, 210255202), (20, 105127601), (89, 23624180), (178, 11812090), (356, 5906045), (445, 4724836), (890, 2362418), (1780, 1181209)]