23971280

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2749}}^1$

素因数の和:2871

約数の個数: 40

約数和(自身を含む): 56265000

約数和(自身を除く): 32293720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 2749, 4360, 5498, 8720, 10996, 13745, 21992, 27490, 43984, 54980, 109960, 219920, 299641, 599282, 1198564, 1498205, 2397128, 2996410, 4794256, 5992820, 11985640, 23971280]

約数ペア:

[(1, 23971280), (2, 11985640), (4, 5992820), (5, 4794256), (8, 2996410), (10, 2397128), (16, 1498205), (20, 1198564), (40, 599282), (80, 299641), (109, 219920), (218, 109960), (436, 54980), (545, 43984), (872, 27490), (1090, 21992), (1744, 13745), (2180, 10996), (2749, 8720), (4360, 5498)]