80701640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22669}}^1$

素因数の和:22769

約数の個数: 32

約数和(自身を含む): 183627000

約数和(自身を除く): 102925360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 22669, 45338, 90676, 113345, 181352, 226690, 453380, 906760, 2017541, 4035082, 8070164, 10087705, 16140328, 20175410, 40350820, 80701640]

約数ペア:

[(1, 80701640), (2, 40350820), (4, 20175410), (5, 16140328), (8, 10087705), (10, 8070164), (20, 4035082), (40, 2017541), (89, 906760), (178, 453380), (356, 226690), (445, 181352), (712, 113345), (890, 90676), (1780, 45338), (3560, 22669)]