84210640

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19861}}^1$

素因数の和:19927

約数の個数: 40

約数和(自身を含む): 199493928

約数和(自身を除く): 115283288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 19861, 39722, 79444, 99305, 158888, 198610, 317776, 397220, 794440, 1052633, 1588880, 2105266, 4210532, 5263165, 8421064, 10526330, 16842128, 21052660, 42105320, 84210640]

約数ペア:

[(1, 84210640), (2, 42105320), (4, 21052660), (5, 16842128), (8, 10526330), (10, 8421064), (16, 5263165), (20, 4210532), (40, 2105266), (53, 1588880), (80, 1052633), (106, 794440), (212, 397220), (265, 317776), (424, 198610), (530, 158888), (848, 99305), (1060, 79444), (2120, 39722), (4240, 19861)]