22519780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{15859}}^1$

素因数の和:15939

約数の個数: 24

約数和(自身を含む): 47960640

約数和(自身を除く): 25440860

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 15859, 31718, 63436, 79295, 158590, 317180, 1125989, 2251978, 4503956, 5629945, 11259890, 22519780]

約数ペア:

[(1, 22519780), (2, 11259890), (4, 5629945), (5, 4503956), (10, 2251978), (20, 1125989), (71, 317180), (142, 158590), (284, 79295), (355, 63436), (710, 31718), (1420, 15859)]