20100880

素因数分解:

$2^4\times 5^1\times {\mathrm{251261}}^1$

素因数の和:251274

約数の個数: 20

約数和(自身を含む): 46734732

約数和(自身を除く): 26633852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251261, 502522, 1005044, 1256305, 2010088, 2512610, 4020176, 5025220, 10050440, 20100880]

約数ペア:

[(1, 20100880), (2, 10050440), (4, 5025220), (5, 4020176), (8, 2512610), (10, 2010088), (16, 1256305), (20, 1005044), (40, 502522), (80, 251261)]