31313140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{4337}}^1$

素因数の和:4384

約数の個数: 36

約数和(自身を含む): 69416676

約数和(自身を除く): 38103536

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 4337, 7220, 8674, 17348, 21685, 43370, 82403, 86740, 164806, 329612, 412015, 824030, 1565657, 1648060, 3131314, 6262628, 7828285, 15656570, 31313140]

約数ペア:

[(1, 31313140), (2, 15656570), (4, 7828285), (5, 6262628), (10, 3131314), (19, 1648060), (20, 1565657), (38, 824030), (76, 412015), (95, 329612), (190, 164806), (361, 86740), (380, 82403), (722, 43370), (1444, 21685), (1805, 17348), (3610, 8674), (4337, 7220)]