187139440

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{54401}}^1$

素因数の和:54457

約数の個数: 40

約数和(自身を含む): 445225968

約数和(自身を除く): 258086528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 54401, 108802, 217604, 272005, 435208, 544010, 870416, 1088020, 2176040, 2339243, 4352080, 4678486, 9356972, 11696215, 18713944, 23392430, 37427888, 46784860, 93569720, 187139440]

約数ペア:

[(1, 187139440), (2, 93569720), (4, 46784860), (5, 37427888), (8, 23392430), (10, 18713944), (16, 11696215), (20, 9356972), (40, 4678486), (43, 4352080), (80, 2339243), (86, 2176040), (172, 1088020), (215, 870416), (344, 544010), (430, 435208), (688, 272005), (860, 217604), (1720, 108802), (3440, 54401)]