815815

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1$

素因数の和:199

約数の個数: 32

約数和(自身を含む): 1322496

約数和(自身を除く): 506681

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 163, 385, 455, 715, 815, 1001, 1141, 1793, 2119, 5005, 5705, 8965, 10595, 12551, 14833, 23309, 62755, 74165, 116545, 163163, 815815]

約数ペア:

[(1, 815815), (5, 163163), (7, 116545), (11, 74165), (13, 62755), (35, 23309), (55, 14833), (65, 12551), (77, 10595), (91, 8965), (143, 5705), (163, 5005), (385, 2119), (455, 1793), (715, 1141), (815, 1001)]