13445240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7817}}^1$

素因数の和:7871

約数の個数: 32

約数和(自身を含む): 30959280

約数和(自身を除く): 17514040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7817, 15634, 31268, 39085, 62536, 78170, 156340, 312680, 336131, 672262, 1344524, 1680655, 2689048, 3361310, 6722620, 13445240]

約数ペア:

[(1, 13445240), (2, 6722620), (4, 3361310), (5, 2689048), (8, 1680655), (10, 1344524), (20, 672262), (40, 336131), (43, 312680), (86, 156340), (172, 78170), (215, 62536), (344, 39085), (430, 31268), (860, 15634), (1720, 7817)]