1118320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1997}}^1$

素因数の和:2017

約数の個数: 40

約数和(自身を含む): 2973024

約数和(自身を除く): 1854704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1997, 3994, 7988, 9985, 13979, 15976, 19970, 27958, 31952, 39940, 55916, 69895, 79880, 111832, 139790, 159760, 223664, 279580, 559160, 1118320]

約数ペア:

[(1, 1118320), (2, 559160), (4, 279580), (5, 223664), (7, 159760), (8, 139790), (10, 111832), (14, 79880), (16, 69895), (20, 55916), (28, 39940), (35, 31952), (40, 27958), (56, 19970), (70, 15976), (80, 13979), (112, 9985), (140, 7988), (280, 3994), (560, 1997)]