100505840

素因数分解:

$2^4\times 5^1\times {\mathrm{1256323}}^1$

素因数の和:1256336

約数の個数: 20

約数和(自身を含む): 233676264

約数和(自身を除く): 133170424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1256323, 2512646, 5025292, 6281615, 10050584, 12563230, 20101168, 25126460, 50252920, 100505840]

約数ペア:

[(1, 100505840), (2, 50252920), (4, 25126460), (5, 20101168), (8, 12563230), (10, 10050584), (16, 6281615), (20, 5025292), (40, 2512646), (80, 1256323)]