209745288

素因数分解:

$2^3\times 3^4\times {\mathrm{431}}^1\times {\mathrm{751}}^1$

素因数の和:1200

約数の個数: 80

約数和(自身を含む): 589628160

約数和(自身を除く): 379882872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 431, 648, 751, 862, 1293, 1502, 1724, 2253, 2586, 3004, 3448, 3879, 4506, 5172, 6008, 6759, 7758, 9012, 10344, 11637, 13518, 15516, 18024, 20277, 23274, 27036, 31032, 34911, 40554, 46548, 54072, 60831, 69822, 81108, 93096, 121662, 139644, 162216, 243324, 279288, 323681, 486648, 647362, 971043, 1294724, 1942086, 2589448, 2913129, 3884172, 5826258, 7768344, 8739387, 11652516, 17478774, 23305032, 26218161, 34957548, 52436322, 69915096, 104872644, 209745288]

約数ペア:

[(1, 209745288), (2, 104872644), (3, 69915096), (4, 52436322), (6, 34957548), (8, 26218161), (9, 23305032), (12, 17478774), (18, 11652516), (24, 8739387), (27, 7768344), (36, 5826258), (54, 3884172), (72, 2913129), (81, 2589448), (108, 1942086), (162, 1294724), (216, 971043), (324, 647362), (431, 486648), (648, 323681), (751, 279288), (862, 243324), (1293, 162216), (1502, 139644), (1724, 121662), (2253, 93096), (2586, 81108), (3004, 69822), (3448, 60831), (3879, 54072), (4506, 46548), (5172, 40554), (6008, 34911), (6759, 31032), (7758, 27036), (9012, 23274), (10344, 20277), (11637, 18024), (13518, 15516)]