20200220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1051}}^1$

素因数の和:1122

約数の個数: 36

約数和(自身を含む): 43874712

約数和(自身を除く): 23674492

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1051, 1922, 2102, 3844, 4204, 4805, 5255, 9610, 10510, 19220, 21020, 32581, 65162, 130324, 162905, 325810, 651620, 1010011, 2020022, 4040044, 5050055, 10100110, 20200220]

約数ペア:

[(1, 20200220), (2, 10100110), (4, 5050055), (5, 4040044), (10, 2020022), (20, 1010011), (31, 651620), (62, 325810), (124, 162905), (155, 130324), (310, 65162), (620, 32581), (961, 21020), (1051, 19220), (1922, 10510), (2102, 9610), (3844, 5255), (4204, 4805)]