31117720

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{4073}}^1$

素因数の和:4275

約数の個数: 32

約数和(自身を含む): 70398720

約数和(自身を除く): 39281000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 4073, 7640, 8146, 16292, 20365, 32584, 40730, 81460, 162920, 777943, 1555886, 3111772, 3889715, 6223544, 7779430, 15558860, 31117720]

約数ペア:

[(1, 31117720), (2, 15558860), (4, 7779430), (5, 6223544), (8, 3889715), (10, 3111772), (20, 1555886), (40, 777943), (191, 162920), (382, 81460), (764, 40730), (955, 32584), (1528, 20365), (1910, 16292), (3820, 8146), (4073, 7640)]