25904515

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{197}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 40848192

約数和(自身を除く): 14943677

約数列:

[1, 5, 7, 13, 17, 35, 65, 85, 91, 119, 197, 221, 289, 455, 595, 985, 1105, 1379, 1445, 1547, 2023, 2561, 3349, 3757, 6895, 7735, 10115, 12805, 16745, 17927, 18785, 23443, 26299, 43537, 56933, 89635, 117215, 131495, 217685, 284665, 304759, 398531, 740129, 1523795, 1992655, 3700645, 5180903, 25904515]

約数ペア:

[(1, 25904515), (5, 5180903), (7, 3700645), (13, 1992655), (17, 1523795), (35, 740129), (65, 398531), (85, 304759), (91, 284665), (119, 217685), (197, 131495), (221, 117215), (289, 89635), (455, 56933), (595, 43537), (985, 26299), (1105, 23443), (1379, 18785), (1445, 17927), (1547, 16745), (2023, 12805), (2561, 10115), (3349, 7735), (3757, 6895)]