15664240

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1901}}^1$

素因数の和:2017

約数の個数: 40

約数和(自身を含む): 36792288

約数和(自身を除く): 21128048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 1901, 2060, 3802, 4120, 7604, 8240, 9505, 15208, 19010, 30416, 38020, 76040, 152080, 195803, 391606, 783212, 979015, 1566424, 1958030, 3132848, 3916060, 7832120, 15664240]

約数ペア:

[(1, 15664240), (2, 7832120), (4, 3916060), (5, 3132848), (8, 1958030), (10, 1566424), (16, 979015), (20, 783212), (40, 391606), (80, 195803), (103, 152080), (206, 76040), (412, 38020), (515, 30416), (824, 19010), (1030, 15208), (1648, 9505), (1901, 8240), (2060, 7604), (3802, 4120)]