129876800

素因数分解:

$2^6\times 5^2\times {\mathrm{81173}}^1$

素因数の和:81195

約数の個数: 42

約数和(自身を含む): 319582038

約数和(自身を除く): 189705238

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 81173, 162346, 324692, 405865, 649384, 811730, 1298768, 1623460, 2029325, 2597536, 3246920, 4058650, 5195072, 6493840, 8117300, 12987680, 16234600, 25975360, 32469200, 64938400, 129876800]

約数ペア:

[(1, 129876800), (2, 64938400), (4, 32469200), (5, 25975360), (8, 16234600), (10, 12987680), (16, 8117300), (20, 6493840), (25, 5195072), (32, 4058650), (40, 3246920), (50, 2597536), (64, 2029325), (80, 1623460), (100, 1298768), (160, 811730), (200, 649384), (320, 405865), (400, 324692), (800, 162346), (1600, 81173)]