31139080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{111211}}^1$

素因数の和:111229

約数の個数: 32

約数和(自身を含む): 80072640

約数和(自身を除く): 48933560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 111211, 222422, 444844, 556055, 778477, 889688, 1112110, 1556954, 2224220, 3113908, 3892385, 4448440, 6227816, 7784770, 15569540, 31139080]

約数ペア:

[(1, 31139080), (2, 15569540), (4, 7784770), (5, 6227816), (7, 4448440), (8, 3892385), (10, 3113908), (14, 2224220), (20, 1556954), (28, 1112110), (35, 889688), (40, 778477), (56, 556055), (70, 444844), (140, 222422), (280, 111211)]