200019890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{2857427}}^1$

素因数の和:2857441

約数の個数: 16

約数和(自身を含む): 411469632

約数和(自身を除く): 211449742

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 2857427, 5714854, 14287135, 20001989, 28574270, 40003978, 100009945, 200019890]

約数ペア:

[(1, 200019890), (2, 100009945), (5, 40003978), (7, 28574270), (10, 20001989), (14, 14287135), (35, 5714854), (70, 2857427)]