28124240

素因数分解:

$2^4\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1109}}^1$

素因数の和:1439

約数の個数: 40

約数和(自身を含む): 65654280

約数和(自身を除く): 37530040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317, 634, 1109, 1268, 1585, 2218, 2536, 3170, 4436, 5072, 5545, 6340, 8872, 11090, 12680, 17744, 22180, 25360, 44360, 88720, 351553, 703106, 1406212, 1757765, 2812424, 3515530, 5624848, 7031060, 14062120, 28124240]

約数ペア:

[(1, 28124240), (2, 14062120), (4, 7031060), (5, 5624848), (8, 3515530), (10, 2812424), (16, 1757765), (20, 1406212), (40, 703106), (80, 351553), (317, 88720), (634, 44360), (1109, 25360), (1268, 22180), (1585, 17744), (2218, 12680), (2536, 11090), (3170, 8872), (4436, 6340), (5072, 5545)]