199965520

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{37307}}^1$

素因数の和:37387

約数の個数: 40

約数和(自身を含む): 471871584

約数和(自身を除く): 271906064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 37307, 74614, 149228, 186535, 298456, 373070, 596912, 746140, 1492280, 2499569, 2984560, 4999138, 9998276, 12497845, 19996552, 24995690, 39993104, 49991380, 99982760, 199965520]

約数ペア:

[(1, 199965520), (2, 99982760), (4, 49991380), (5, 39993104), (8, 24995690), (10, 19996552), (16, 12497845), (20, 9998276), (40, 4999138), (67, 2984560), (80, 2499569), (134, 1492280), (268, 746140), (335, 596912), (536, 373070), (670, 298456), (1072, 186535), (1340, 149228), (2680, 74614), (5360, 37307)]