256873110

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{658649}}^1$

素因数の和:658672

約数の個数: 32

約数和(自身を含む): 663919200

約数和(自身を除く): 407046090

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 658649, 1317298, 1975947, 3293245, 3951894, 6586490, 8562437, 9879735, 17124874, 19759470, 25687311, 42812185, 51374622, 85624370, 128436555, 256873110]

約数ペア:

[(1, 256873110), (2, 128436555), (3, 85624370), (5, 51374622), (6, 42812185), (10, 25687311), (13, 19759470), (15, 17124874), (26, 9879735), (30, 8562437), (39, 6586490), (65, 3951894), (78, 3293245), (130, 1975947), (195, 1317298), (390, 658649)]