80577040

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11317}}^1$

素因数の和:11419

約数の個数: 40

約数和(自身を含む): 189463320

約数和(自身を除く): 108886280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 11317, 22634, 45268, 56585, 90536, 113170, 181072, 226340, 452680, 905360, 1007213, 2014426, 4028852, 5036065, 8057704, 10072130, 16115408, 20144260, 40288520, 80577040]

約数ペア:

[(1, 80577040), (2, 40288520), (4, 20144260), (5, 16115408), (8, 10072130), (10, 8057704), (16, 5036065), (20, 4028852), (40, 2014426), (80, 1007213), (89, 905360), (178, 452680), (356, 226340), (445, 181072), (712, 113170), (890, 90536), (1424, 56585), (1780, 45268), (3560, 22634), (7120, 11317)]