11281720

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2153}}^1$

素因数の和:2295

約数の個数: 32

約数和(自身を含む): 25589520

約数和(自身を除く): 14307800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2153, 2620, 4306, 5240, 8612, 10765, 17224, 21530, 43060, 86120, 282043, 564086, 1128172, 1410215, 2256344, 2820430, 5640860, 11281720]

約数ペア:

[(1, 11281720), (2, 5640860), (4, 2820430), (5, 2256344), (8, 1410215), (10, 1128172), (20, 564086), (40, 282043), (131, 86120), (262, 43060), (524, 21530), (655, 17224), (1048, 10765), (1310, 8612), (2153, 5240), (2620, 4306)]