438195745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1\times {\mathrm{421}}^1$

素因数の和:745

約数の個数: 32

約数和(自身を含む): 578511360

約数和(自身を除く): 140315615

約数列:

[1, 5, 13, 65, 67, 239, 335, 421, 871, 1195, 2105, 3107, 4355, 5473, 15535, 16013, 27365, 28207, 80065, 100619, 141035, 208169, 366691, 503095, 1040845, 1308047, 1833455, 6540235, 6741473, 33707365, 87639149, 438195745]

約数ペア:

[(1, 438195745), (5, 87639149), (13, 33707365), (65, 6741473), (67, 6540235), (239, 1833455), (335, 1308047), (421, 1040845), (871, 503095), (1195, 366691), (2105, 208169), (3107, 141035), (4355, 100619), (5473, 80065), (15535, 28207), (16013, 27365)]