20335315

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1$

素因数の和:292

約数の個数: 64

約数和(自身を含む): 34836480

約数和(自身を除く): 14501165

約数列:

[1, 5, 7, 11, 13, 17, 35, 55, 65, 77, 85, 91, 119, 143, 187, 221, 239, 385, 455, 595, 715, 935, 1001, 1105, 1195, 1309, 1547, 1673, 2431, 2629, 3107, 4063, 5005, 6545, 7735, 8365, 12155, 13145, 15535, 17017, 18403, 20315, 21749, 28441, 34177, 44693, 52819, 85085, 92015, 108745, 142205, 170885, 223465, 239239, 264095, 312851, 369733, 581009, 1196195, 1564255, 1848665, 2905045, 4067063, 20335315]

約数ペア:

[(1, 20335315), (5, 4067063), (7, 2905045), (11, 1848665), (13, 1564255), (17, 1196195), (35, 581009), (55, 369733), (65, 312851), (77, 264095), (85, 239239), (91, 223465), (119, 170885), (143, 142205), (187, 108745), (221, 92015), (239, 85085), (385, 52819), (455, 44693), (595, 34177), (715, 28441), (935, 21749), (1001, 20315), (1105, 18403), (1195, 17017), (1309, 15535), (1547, 13145), (1673, 12155), (2431, 8365), (2629, 7735), (3107, 6545), (4063, 5005)]