31237245

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1$

素因数の和:396

約数の個数: 80

約数和(自身を含む): 64033200

約数和(自身を除く): 32795955

約数列:

[1, 3, 5, 9, 13, 15, 17, 27, 39, 45, 51, 65, 81, 85, 117, 135, 153, 195, 221, 255, 349, 351, 405, 459, 585, 663, 765, 1047, 1053, 1105, 1377, 1745, 1755, 1989, 2295, 3141, 3315, 4537, 5235, 5265, 5933, 5967, 6885, 9423, 9945, 13611, 15705, 17799, 17901, 22685, 28269, 29665, 29835, 40833, 47115, 53397, 68055, 77129, 88995, 89505, 122499, 141345, 160191, 204165, 231387, 266985, 367497, 385645, 480573, 612495, 694161, 800955, 1156935, 1837485, 2082483, 2402865, 3470805, 6247449, 10412415, 31237245]

約数ペア:

[(1, 31237245), (3, 10412415), (5, 6247449), (9, 3470805), (13, 2402865), (15, 2082483), (17, 1837485), (27, 1156935), (39, 800955), (45, 694161), (51, 612495), (65, 480573), (81, 385645), (85, 367497), (117, 266985), (135, 231387), (153, 204165), (195, 160191), (221, 141345), (255, 122499), (349, 89505), (351, 88995), (405, 77129), (459, 68055), (585, 53397), (663, 47115), (765, 40833), (1047, 29835), (1053, 29665), (1105, 28269), (1377, 22685), (1745, 17901), (1755, 17799), (1989, 15705), (2295, 13611), (3141, 9945), (3315, 9423), (4537, 6885), (5235, 5967), (5265, 5933)]