39488220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{509}}^1$

素因数の和:955

約数の個数: 72

約数和(自身を含む): 120294720

約数和(自身を除く): 80806500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 431, 509, 862, 1018, 1293, 1527, 1724, 2036, 2155, 2545, 2586, 3054, 3879, 4310, 4581, 5090, 5172, 6108, 6465, 7635, 7758, 8620, 9162, 10180, 12930, 15270, 15516, 18324, 19395, 22905, 25860, 30540, 38790, 45810, 77580, 91620, 219379, 438758, 658137, 877516, 1096895, 1316274, 1974411, 2193790, 2632548, 3290685, 3948822, 4387580, 6581370, 7897644, 9872055, 13162740, 19744110, 39488220]

約数ペア:

[(1, 39488220), (2, 19744110), (3, 13162740), (4, 9872055), (5, 7897644), (6, 6581370), (9, 4387580), (10, 3948822), (12, 3290685), (15, 2632548), (18, 2193790), (20, 1974411), (30, 1316274), (36, 1096895), (45, 877516), (60, 658137), (90, 438758), (180, 219379), (431, 91620), (509, 77580), (862, 45810), (1018, 38790), (1293, 30540), (1527, 25860), (1724, 22905), (2036, 19395), (2155, 18324), (2545, 15516), (2586, 15270), (3054, 12930), (3879, 10180), (4310, 9162), (4581, 8620), (5090, 7758), (5172, 7635), (6108, 6465)]