16761745

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 28740096

約数和(自身を除く): 11978351

約数列:

[1, 5, 7, 11, 13, 17, 35, 55, 65, 77, 85, 91, 119, 143, 187, 197, 221, 385, 455, 595, 715, 935, 985, 1001, 1105, 1309, 1379, 1547, 2167, 2431, 2561, 3349, 5005, 6545, 6895, 7735, 10835, 12155, 12805, 15169, 16745, 17017, 17927, 23443, 28171, 36839, 43537, 75845, 85085, 89635, 117215, 140855, 184195, 197197, 217685, 257873, 304759, 478907, 985985, 1289365, 1523795, 2394535, 3352349, 16761745]

約数ペア:

[(1, 16761745), (5, 3352349), (7, 2394535), (11, 1523795), (13, 1289365), (17, 985985), (35, 478907), (55, 304759), (65, 257873), (77, 217685), (85, 197197), (91, 184195), (119, 140855), (143, 117215), (187, 89635), (197, 85085), (221, 75845), (385, 43537), (455, 36839), (595, 28171), (715, 23443), (935, 17927), (985, 17017), (1001, 16745), (1105, 15169), (1309, 12805), (1379, 12155), (1547, 10835), (2167, 7735), (2431, 6895), (2561, 6545), (3349, 5005)]