20477760

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:360

約数の個数: 112

約数和(自身を含む): 66056256

約数和(自身を除く): 45578496

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 83, 96, 120, 160, 166, 192, 240, 249, 257, 320, 332, 415, 480, 498, 514, 664, 771, 830, 960, 996, 1028, 1245, 1285, 1328, 1542, 1660, 1992, 2056, 2490, 2570, 2656, 3084, 3320, 3855, 3984, 4112, 4980, 5140, 5312, 6168, 6640, 7710, 7968, 8224, 9960, 10280, 12336, 13280, 15420, 15936, 16448, 19920, 20560, 21331, 24672, 26560, 30840, 39840, 41120, 42662, 49344, 61680, 63993, 79680, 82240, 85324, 106655, 123360, 127986, 170648, 213310, 246720, 255972, 319965, 341296, 426620, 511944, 639930, 682592, 853240, 1023888, 1279860, 1365184, 1706480, 2047776, 2559720, 3412960, 4095552, 5119440, 6825920, 10238880, 20477760]

約数ペア:

[(1, 20477760), (2, 10238880), (3, 6825920), (4, 5119440), (5, 4095552), (6, 3412960), (8, 2559720), (10, 2047776), (12, 1706480), (15, 1365184), (16, 1279860), (20, 1023888), (24, 853240), (30, 682592), (32, 639930), (40, 511944), (48, 426620), (60, 341296), (64, 319965), (80, 255972), (83, 246720), (96, 213310), (120, 170648), (160, 127986), (166, 123360), (192, 106655), (240, 85324), (249, 82240), (257, 79680), (320, 63993), (332, 61680), (415, 49344), (480, 42662), (498, 41120), (514, 39840), (664, 30840), (771, 26560), (830, 24672), (960, 21331), (996, 20560), (1028, 19920), (1245, 16448), (1285, 15936), (1328, 15420), (1542, 13280), (1660, 12336), (1992, 10280), (2056, 9960), (2490, 8224), (2570, 7968), (2656, 7710), (3084, 6640), (3320, 6168), (3855, 5312), (3984, 5140), (4112, 4980)]