201112220

素因数分解:

$2^2\times 5^1\times {\mathrm{1907}}^1\times {\mathrm{5273}}^1$

素因数の和:7189

約数の個数: 24

約数和(自身を含む): 422637264

約数和(自身を除く): 221525044

約数列:

[1, 2, 4, 5, 10, 20, 1907, 3814, 5273, 7628, 9535, 10546, 19070, 21092, 26365, 38140, 52730, 105460, 10055611, 20111222, 40222444, 50278055, 100556110, 201112220]

約数ペア:

[(1, 201112220), (2, 100556110), (4, 50278055), (5, 40222444), (10, 20111222), (20, 10055611), (1907, 105460), (3814, 52730), (5273, 38140), (7628, 26365), (9535, 21092), (10546, 19070)]