18276320

素因数分解:

$2^5\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1109}}^1$

素因数の和:1227

約数の個数: 48

約数和(自身を含む): 43636320

約数和(自身を除く): 25360000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 103, 160, 206, 412, 515, 824, 1030, 1109, 1648, 2060, 2218, 3296, 4120, 4436, 5545, 8240, 8872, 11090, 16480, 17744, 22180, 35488, 44360, 88720, 114227, 177440, 228454, 456908, 571135, 913816, 1142270, 1827632, 2284540, 3655264, 4569080, 9138160, 18276320]

約数ペア:

[(1, 18276320), (2, 9138160), (4, 4569080), (5, 3655264), (8, 2284540), (10, 1827632), (16, 1142270), (20, 913816), (32, 571135), (40, 456908), (80, 228454), (103, 177440), (160, 114227), (206, 88720), (412, 44360), (515, 35488), (824, 22180), (1030, 17744), (1109, 16480), (1648, 11090), (2060, 8872), (2218, 8240), (3296, 5545), (4120, 4436)]