31540140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1279}}^1$

素因数の和:1431

約数の個数: 72

約数和(自身を含む): 96445440

約数和(自身を除く): 64905300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 137, 180, 274, 411, 548, 685, 822, 1233, 1279, 1370, 1644, 2055, 2466, 2558, 2740, 3837, 4110, 4932, 5116, 6165, 6395, 7674, 8220, 11511, 12330, 12790, 15348, 19185, 23022, 24660, 25580, 38370, 46044, 57555, 76740, 115110, 175223, 230220, 350446, 525669, 700892, 876115, 1051338, 1577007, 1752230, 2102676, 2628345, 3154014, 3504460, 5256690, 6308028, 7885035, 10513380, 15770070, 31540140]

約数ペア:

[(1, 31540140), (2, 15770070), (3, 10513380), (4, 7885035), (5, 6308028), (6, 5256690), (9, 3504460), (10, 3154014), (12, 2628345), (15, 2102676), (18, 1752230), (20, 1577007), (30, 1051338), (36, 876115), (45, 700892), (60, 525669), (90, 350446), (137, 230220), (180, 175223), (274, 115110), (411, 76740), (548, 57555), (685, 46044), (822, 38370), (1233, 25580), (1279, 24660), (1370, 23022), (1644, 19185), (2055, 15348), (2466, 12790), (2558, 12330), (2740, 11511), (3837, 8220), (4110, 7674), (4932, 6395), (5116, 6165)]