20598720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:562

約数の個数: 112

約数和(自身を含む): 67056000

約数和(自身を除く): 46457280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 64, 80, 86, 96, 120, 129, 160, 172, 192, 215, 240, 258, 320, 344, 430, 480, 499, 516, 645, 688, 860, 960, 998, 1032, 1290, 1376, 1497, 1720, 1996, 2064, 2495, 2580, 2752, 2994, 3440, 3992, 4128, 4990, 5160, 5988, 6880, 7485, 7984, 8256, 9980, 10320, 11976, 13760, 14970, 15968, 19960, 20640, 21457, 23952, 29940, 31936, 39920, 41280, 42914, 47904, 59880, 64371, 79840, 85828, 95808, 107285, 119760, 128742, 159680, 171656, 214570, 239520, 257484, 321855, 343312, 429140, 479040, 514968, 643710, 686624, 858280, 1029936, 1287420, 1373248, 1716560, 2059872, 2574840, 3433120, 4119744, 5149680, 6866240, 10299360, 20598720]

約数ペア:

[(1, 20598720), (2, 10299360), (3, 6866240), (4, 5149680), (5, 4119744), (6, 3433120), (8, 2574840), (10, 2059872), (12, 1716560), (15, 1373248), (16, 1287420), (20, 1029936), (24, 858280), (30, 686624), (32, 643710), (40, 514968), (43, 479040), (48, 429140), (60, 343312), (64, 321855), (80, 257484), (86, 239520), (96, 214570), (120, 171656), (129, 159680), (160, 128742), (172, 119760), (192, 107285), (215, 95808), (240, 85828), (258, 79840), (320, 64371), (344, 59880), (430, 47904), (480, 42914), (499, 41280), (516, 39920), (645, 31936), (688, 29940), (860, 23952), (960, 21457), (998, 20640), (1032, 19960), (1290, 15968), (1376, 14970), (1497, 13760), (1720, 11976), (1996, 10320), (2064, 9980), (2495, 8256), (2580, 7984), (2752, 7485), (2994, 6880), (3440, 5988), (3992, 5160), (4128, 4990)]