261521280

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{45403}}^1$

素因数の和:45428

約数の個数: 96

約数和(自身を含む): 903085560

約数和(自身を除く): 641564280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 288, 320, 360, 384, 480, 576, 640, 720, 960, 1152, 1440, 1920, 2880, 5760, 45403, 90806, 136209, 181612, 227015, 272418, 363224, 408627, 454030, 544836, 681045, 726448, 817254, 908060, 1089672, 1362090, 1452896, 1634508, 1816120, 2043135, 2179344, 2724180, 2905792, 3269016, 3632240, 4086270, 4358688, 5448360, 5811584, 6538032, 7264480, 8172540, 8717376, 10896720, 13076064, 14528960, 16345080, 17434752, 21793440, 26152128, 29057920, 32690160, 43586880, 52304256, 65380320, 87173760, 130760640, 261521280]

約数ペア:

[(1, 261521280), (2, 130760640), (3, 87173760), (4, 65380320), (5, 52304256), (6, 43586880), (8, 32690160), (9, 29057920), (10, 26152128), (12, 21793440), (15, 17434752), (16, 16345080), (18, 14528960), (20, 13076064), (24, 10896720), (30, 8717376), (32, 8172540), (36, 7264480), (40, 6538032), (45, 5811584), (48, 5448360), (60, 4358688), (64, 4086270), (72, 3632240), (80, 3269016), (90, 2905792), (96, 2724180), (120, 2179344), (128, 2043135), (144, 1816120), (160, 1634508), (180, 1452896), (192, 1362090), (240, 1089672), (288, 908060), (320, 817254), (360, 726448), (384, 681045), (480, 544836), (576, 454030), (640, 408627), (720, 363224), (960, 272418), (1152, 227015), (1440, 181612), (1920, 136209), (2880, 90806), (5760, 45403)]