20474880

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:102

約数の個数: 176

約数和(自身を含む): 69172224

約数和(自身を除く): 48697344

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 43, 48, 60, 62, 64, 80, 86, 93, 96, 120, 124, 128, 129, 155, 160, 172, 186, 192, 215, 240, 248, 256, 258, 310, 320, 344, 372, 384, 430, 465, 480, 496, 512, 516, 620, 640, 645, 688, 744, 768, 860, 930, 960, 992, 1024, 1032, 1240, 1280, 1290, 1333, 1376, 1488, 1536, 1720, 1860, 1920, 1984, 2064, 2480, 2560, 2580, 2666, 2752, 2976, 3072, 3440, 3720, 3840, 3968, 3999, 4128, 4960, 5120, 5160, 5332, 5504, 5952, 6665, 6880, 7440, 7680, 7936, 7998, 8256, 9920, 10320, 10664, 11008, 11904, 13330, 13760, 14880, 15360, 15872, 15996, 16512, 19840, 19995, 20640, 21328, 22016, 23808, 26660, 27520, 29760, 31744, 31992, 33024, 39680, 39990, 41280, 42656, 44032, 47616, 53320, 55040, 59520, 63984, 66048, 79360, 79980, 82560, 85312, 95232, 106640, 110080, 119040, 127968, 132096, 158720, 159960, 165120, 170624, 213280, 220160, 238080, 255936, 319920, 330240, 341248, 426560, 476160, 511872, 639840, 660480, 682496, 853120, 1023744, 1279680, 1364992, 1706240, 2047488, 2559360, 3412480, 4094976, 5118720, 6824960, 10237440, 20474880]

約数ペア:

[(1, 20474880), (2, 10237440), (3, 6824960), (4, 5118720), (5, 4094976), (6, 3412480), (8, 2559360), (10, 2047488), (12, 1706240), (15, 1364992), (16, 1279680), (20, 1023744), (24, 853120), (30, 682496), (31, 660480), (32, 639840), (40, 511872), (43, 476160), (48, 426560), (60, 341248), (62, 330240), (64, 319920), (80, 255936), (86, 238080), (93, 220160), (96, 213280), (120, 170624), (124, 165120), (128, 159960), (129, 158720), (155, 132096), (160, 127968), (172, 119040), (186, 110080), (192, 106640), (215, 95232), (240, 85312), (248, 82560), (256, 79980), (258, 79360), (310, 66048), (320, 63984), (344, 59520), (372, 55040), (384, 53320), (430, 47616), (465, 44032), (480, 42656), (496, 41280), (512, 39990), (516, 39680), (620, 33024), (640, 31992), (645, 31744), (688, 29760), (744, 27520), (768, 26660), (860, 23808), (930, 22016), (960, 21328), (992, 20640), (1024, 19995), (1032, 19840), (1240, 16512), (1280, 15996), (1290, 15872), (1333, 15360), (1376, 14880), (1488, 13760), (1536, 13330), (1720, 11904), (1860, 11008), (1920, 10664), (1984, 10320), (2064, 9920), (2480, 8256), (2560, 7998), (2580, 7936), (2666, 7680), (2752, 7440), (2976, 6880), (3072, 6665), (3440, 5952), (3720, 5504), (3840, 5332), (3968, 5160), (3999, 5120), (4128, 4960)]