2109494020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1185109}}^1$

素因数の和:1185207

約数の個数: 24

約数和(自身を含む): 4479715800

約数和(自身を除く): 2370221780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 1185109, 2370218, 4740436, 5925545, 11851090, 23702180, 105474701, 210949402, 421898804, 527373505, 1054747010, 2109494020]

約数ペア:

[(1, 2109494020), (2, 1054747010), (4, 527373505), (5, 421898804), (10, 210949402), (20, 105474701), (89, 23702180), (178, 11851090), (356, 5925545), (445, 4740436), (890, 2370218), (1780, 1185109)]