28305302780

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1\times {\mathrm{67141}}^1$

素因数の和:67454

約数の個数: 48

約数和(自身を含む): 60302110176

約数和(自身を除く): 31996807396

約数列:

[1, 2, 4, 5, 10, 20, 107, 197, 214, 394, 428, 535, 788, 985, 1070, 1970, 2140, 3940, 21079, 42158, 67141, 84316, 105395, 134282, 210790, 268564, 335705, 421580, 671410, 1342820, 7184087, 13226777, 14368174, 26453554, 28736348, 35920435, 52907108, 66133885, 71840870, 132267770, 143681740, 264535540, 1415265139, 2830530278, 5661060556, 7076325695, 14152651390, 28305302780]

約数ペア:

[(1, 28305302780), (2, 14152651390), (4, 7076325695), (5, 5661060556), (10, 2830530278), (20, 1415265139), (107, 264535540), (197, 143681740), (214, 132267770), (394, 71840870), (428, 66133885), (535, 52907108), (788, 35920435), (985, 28736348), (1070, 26453554), (1970, 14368174), (2140, 13226777), (3940, 7184087), (21079, 1342820), (42158, 671410), (67141, 421580), (84316, 335705), (105395, 268564), (134282, 210790)]