1881004040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{4357}}^1$

素因数の和:4662

約数の個数: 64

約数和(自身を含む): 4348935360

約数和(自身を除く): 2467931320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 251, 344, 430, 502, 860, 1004, 1255, 1720, 2008, 2510, 4357, 5020, 8714, 10040, 10793, 17428, 21586, 21785, 34856, 43172, 43570, 53965, 86344, 87140, 107930, 174280, 187351, 215860, 374702, 431720, 749404, 936755, 1093607, 1498808, 1873510, 2187214, 3747020, 4374428, 5468035, 7494040, 8748856, 10936070, 21872140, 43744280, 47025101, 94050202, 188100404, 235125505, 376200808, 470251010, 940502020, 1881004040]

約数ペア:

[(1, 1881004040), (2, 940502020), (4, 470251010), (5, 376200808), (8, 235125505), (10, 188100404), (20, 94050202), (40, 47025101), (43, 43744280), (86, 21872140), (172, 10936070), (215, 8748856), (251, 7494040), (344, 5468035), (430, 4374428), (502, 3747020), (860, 2187214), (1004, 1873510), (1255, 1498808), (1720, 1093607), (2008, 936755), (2510, 749404), (4357, 431720), (5020, 374702), (8714, 215860), (10040, 187351), (10793, 174280), (17428, 107930), (21586, 87140), (21785, 86344), (34856, 53965), (43172, 43570)]