320131725

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{1429}}^1$

素因数の和:1574

約数の個数: 48

約数和(自身を含む): 553238400

約数和(自身を除く): 233106675

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 103, 145, 309, 435, 515, 725, 1429, 1545, 2175, 2575, 2987, 4287, 7145, 7725, 8961, 14935, 21435, 35725, 41441, 44805, 74675, 107175, 124323, 147187, 207205, 224025, 441561, 621615, 735935, 1036025, 2207805, 3108075, 3679675, 4268423, 11039025, 12805269, 21342115, 64026345, 106710575, 320131725]

約数ペア:

[(1, 320131725), (3, 106710575), (5, 64026345), (15, 21342115), (25, 12805269), (29, 11039025), (75, 4268423), (87, 3679675), (103, 3108075), (145, 2207805), (309, 1036025), (435, 735935), (515, 621615), (725, 441561), (1429, 224025), (1545, 207205), (2175, 147187), (2575, 124323), (2987, 107175), (4287, 74675), (7145, 44805), (7725, 41441), (8961, 35725), (14935, 21435)]