2559320

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{587}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 5821200

約数和(自身を除く): 3261880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 587, 872, 1090, 1174, 2180, 2348, 2935, 4360, 4696, 5870, 11740, 23480, 63983, 127966, 255932, 319915, 511864, 639830, 1279660, 2559320]

約数ペア:

[(1, 2559320), (2, 1279660), (4, 639830), (5, 511864), (8, 319915), (10, 255932), (20, 127966), (40, 63983), (109, 23480), (218, 11740), (436, 5870), (545, 4696), (587, 4360), (872, 2935), (1090, 2348), (1174, 2180)]