12821488880

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3727177}}^1$

素因数の和:3727233

約数の個数: 40

約数和(自身を含む): 30503224752

約数和(自身を除く): 17681735872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 3727177, 7454354, 14908708, 18635885, 29817416, 37271770, 59634832, 74543540, 149087080, 160268611, 298174160, 320537222, 641074444, 801343055, 1282148888, 1602686110, 2564297776, 3205372220, 6410744440, 12821488880]

約数ペア:

[(1, 12821488880), (2, 6410744440), (4, 3205372220), (5, 2564297776), (8, 1602686110), (10, 1282148888), (16, 801343055), (20, 641074444), (40, 320537222), (43, 298174160), (80, 160268611), (86, 149087080), (172, 74543540), (215, 59634832), (344, 37271770), (430, 29817416), (688, 18635885), (860, 14908708), (1720, 7454354), (3440, 3727177)]