80732920

素因数分解:

$2^3\times 5^1\times {\mathrm{419}}^1\times {\mathrm{4817}}^1$

素因数の和:5247

約数の個数: 32

約数和(自身を含む): 182120400

約数和(自身を除く): 101387480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 419, 838, 1676, 2095, 3352, 4190, 4817, 8380, 9634, 16760, 19268, 24085, 38536, 48170, 96340, 192680, 2018323, 4036646, 8073292, 10091615, 16146584, 20183230, 40366460, 80732920]

約数ペア:

[(1, 80732920), (2, 40366460), (4, 20183230), (5, 16146584), (8, 10091615), (10, 8073292), (20, 4036646), (40, 2018323), (419, 192680), (838, 96340), (1676, 48170), (2095, 38536), (3352, 24085), (4190, 19268), (4817, 16760), (8380, 9634)]