1307215

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1$

素因数の和:68

約数の個数: 32

約数和(自身を含む): 2056320

約数和(自身を除く): 749105

約数列:

[1, 5, 7, 13, 17, 35, 65, 85, 91, 119, 169, 221, 455, 595, 845, 1105, 1183, 1547, 2197, 2873, 5915, 7735, 10985, 14365, 15379, 20111, 37349, 76895, 100555, 186745, 261443, 1307215]

約数ペア:

[(1, 1307215), (5, 261443), (7, 186745), (13, 100555), (17, 76895), (35, 37349), (65, 20111), (85, 15379), (91, 14365), (119, 10985), (169, 7735), (221, 5915), (455, 2873), (595, 2197), (845, 1547), (1105, 1183)]