27998880

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:679

約数の個数: 192

約数和(自身を含む): 108718848

約数和(自身を除く): 80719968

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 96, 104, 105, 112, 120, 130, 140, 156, 160, 168, 182, 195, 208, 210, 224, 240, 260, 273, 280, 312, 336, 364, 390, 416, 420, 455, 480, 520, 546, 560, 624, 641, 672, 728, 780, 840, 910, 1040, 1092, 1120, 1248, 1282, 1365, 1456, 1560, 1680, 1820, 1923, 2080, 2184, 2564, 2730, 2912, 3120, 3205, 3360, 3640, 3846, 4368, 4487, 5128, 5460, 6240, 6410, 7280, 7692, 8333, 8736, 8974, 9615, 10256, 10920, 12820, 13461, 14560, 15384, 16666, 17948, 19230, 20512, 21840, 22435, 24999, 25640, 26922, 30768, 33332, 35896, 38460, 41665, 43680, 44870, 49998, 51280, 53844, 58331, 61536, 66664, 67305, 71792, 76920, 83330, 89740, 99996, 102560, 107688, 116662, 124995, 133328, 134610, 143584, 153840, 166660, 174993, 179480, 199992, 215376, 233324, 249990, 266656, 269220, 291655, 307680, 333320, 349986, 358960, 399984, 430752, 466648, 499980, 538440, 583310, 666640, 699972, 717920, 799968, 874965, 933296, 999960, 1076880, 1166620, 1333280, 1399944, 1749930, 1866592, 1999920, 2153760, 2333240, 2799888, 3499860, 3999840, 4666480, 5599776, 6999720, 9332960, 13999440, 27998880]

約数ペア:

[(1, 27998880), (2, 13999440), (3, 9332960), (4, 6999720), (5, 5599776), (6, 4666480), (7, 3999840), (8, 3499860), (10, 2799888), (12, 2333240), (13, 2153760), (14, 1999920), (15, 1866592), (16, 1749930), (20, 1399944), (21, 1333280), (24, 1166620), (26, 1076880), (28, 999960), (30, 933296), (32, 874965), (35, 799968), (39, 717920), (40, 699972), (42, 666640), (48, 583310), (52, 538440), (56, 499980), (60, 466648), (65, 430752), (70, 399984), (78, 358960), (80, 349986), (84, 333320), (91, 307680), (96, 291655), (104, 269220), (105, 266656), (112, 249990), (120, 233324), (130, 215376), (140, 199992), (156, 179480), (160, 174993), (168, 166660), (182, 153840), (195, 143584), (208, 134610), (210, 133328), (224, 124995), (240, 116662), (260, 107688), (273, 102560), (280, 99996), (312, 89740), (336, 83330), (364, 76920), (390, 71792), (416, 67305), (420, 66664), (455, 61536), (480, 58331), (520, 53844), (546, 51280), (560, 49998), (624, 44870), (641, 43680), (672, 41665), (728, 38460), (780, 35896), (840, 33332), (910, 30768), (1040, 26922), (1092, 25640), (1120, 24999), (1248, 22435), (1282, 21840), (1365, 20512), (1456, 19230), (1560, 17948), (1680, 16666), (1820, 15384), (1923, 14560), (2080, 13461), (2184, 12820), (2564, 10920), (2730, 10256), (2912, 9615), (3120, 8974), (3205, 8736), (3360, 8333), (3640, 7692), (3846, 7280), (4368, 6410), (4487, 6240), (5128, 5460)]