26217815

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:144

約数の個数: 48

約数和(自身を含む): 37946880

約数和(自身を除く): 11729065

約数列:

[1, 5, 13, 19, 23, 65, 71, 95, 115, 169, 247, 299, 355, 437, 845, 923, 1235, 1349, 1495, 1633, 2185, 3211, 3887, 4615, 5681, 6745, 8165, 11999, 16055, 17537, 19435, 21229, 28405, 31027, 59995, 73853, 87685, 106145, 155135, 227981, 275977, 369265, 403351, 1139905, 1379885, 2016755, 5243563, 26217815]

約数ペア:

[(1, 26217815), (5, 5243563), (13, 2016755), (19, 1379885), (23, 1139905), (65, 403351), (71, 369265), (95, 275977), (115, 227981), (169, 155135), (247, 106145), (299, 87685), (355, 73853), (437, 59995), (845, 31027), (923, 28405), (1235, 21229), (1349, 19435), (1495, 17537), (1633, 16055), (2185, 11999), (3211, 8165), (3887, 6745), (4615, 5681)]