247999725

素因数分解:

$3^5\times 5^2\times {\mathrm{40823}}^1$

素因数の和:40848

約数の個数: 36

約数和(自身を含む): 460658016

約数和(自身を除く): 212658291

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 1215, 2025, 6075, 40823, 122469, 204115, 367407, 612345, 1020575, 1102221, 1837035, 3061725, 3306663, 5511105, 9185175, 9919989, 16533315, 27555525, 49599945, 82666575, 247999725]

約数ペア:

[(1, 247999725), (3, 82666575), (5, 49599945), (9, 27555525), (15, 16533315), (25, 9919989), (27, 9185175), (45, 5511105), (75, 3306663), (81, 3061725), (135, 1837035), (225, 1102221), (243, 1020575), (405, 612345), (675, 367407), (1215, 204115), (2025, 122469), (6075, 40823)]