20688960

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{937}}^1$

素因数の和:980

約数の個数: 112

約数和(自身を含む): 68616576

約数和(自身を除く): 47927616

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 92, 96, 115, 120, 138, 160, 184, 192, 230, 240, 276, 320, 345, 368, 460, 480, 552, 690, 736, 920, 937, 960, 1104, 1380, 1472, 1840, 1874, 2208, 2760, 2811, 3680, 3748, 4416, 4685, 5520, 5622, 7360, 7496, 9370, 11040, 11244, 14055, 14992, 18740, 21551, 22080, 22488, 28110, 29984, 37480, 43102, 44976, 56220, 59968, 64653, 74960, 86204, 89952, 107755, 112440, 129306, 149920, 172408, 179904, 215510, 224880, 258612, 299840, 323265, 344816, 431020, 449760, 517224, 646530, 689632, 862040, 899520, 1034448, 1293060, 1379264, 1724080, 2068896, 2586120, 3448160, 4137792, 5172240, 6896320, 10344480, 20688960]

約数ペア:

[(1, 20688960), (2, 10344480), (3, 6896320), (4, 5172240), (5, 4137792), (6, 3448160), (8, 2586120), (10, 2068896), (12, 1724080), (15, 1379264), (16, 1293060), (20, 1034448), (23, 899520), (24, 862040), (30, 689632), (32, 646530), (40, 517224), (46, 449760), (48, 431020), (60, 344816), (64, 323265), (69, 299840), (80, 258612), (92, 224880), (96, 215510), (115, 179904), (120, 172408), (138, 149920), (160, 129306), (184, 112440), (192, 107755), (230, 89952), (240, 86204), (276, 74960), (320, 64653), (345, 59968), (368, 56220), (460, 44976), (480, 43102), (552, 37480), (690, 29984), (736, 28110), (920, 22488), (937, 22080), (960, 21551), (1104, 18740), (1380, 14992), (1472, 14055), (1840, 11244), (1874, 11040), (2208, 9370), (2760, 7496), (2811, 7360), (3680, 5622), (3748, 5520), (4416, 4685)]