31871220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{647}}^1\times {\mathrm{821}}^1$

素因数の和:1480

約数の個数: 48

約数和(自身を含む): 89486208

約数和(自身を除く): 57614988

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 647, 821, 1294, 1642, 1941, 2463, 2588, 3235, 3284, 3882, 4105, 4926, 6470, 7764, 8210, 9705, 9852, 12315, 12940, 16420, 19410, 24630, 38820, 49260, 531187, 1062374, 1593561, 2124748, 2655935, 3187122, 5311870, 6374244, 7967805, 10623740, 15935610, 31871220]

約数ペア:

[(1, 31871220), (2, 15935610), (3, 10623740), (4, 7967805), (5, 6374244), (6, 5311870), (10, 3187122), (12, 2655935), (15, 2124748), (20, 1593561), (30, 1062374), (60, 531187), (647, 49260), (821, 38820), (1294, 24630), (1642, 19410), (1941, 16420), (2463, 12940), (2588, 12315), (3235, 9852), (3284, 9705), (3882, 8210), (4105, 7764), (4926, 6470)]