28473120

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{13}}^3$

素因数の和:66

約数の個数: 240

約数和(自身を含む): 108856440

約数和(自身を除く): 80383320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 81, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 162, 169, 180, 195, 208, 216, 234, 240, 260, 270, 288, 312, 324, 338, 351, 360, 390, 405, 416, 432, 468, 480, 507, 520, 540, 585, 624, 648, 676, 702, 720, 780, 810, 845, 864, 936, 1014, 1040, 1053, 1080, 1170, 1248, 1296, 1352, 1404, 1440, 1521, 1560, 1620, 1690, 1755, 1872, 2028, 2080, 2106, 2160, 2197, 2340, 2535, 2592, 2704, 2808, 3042, 3120, 3240, 3380, 3510, 3744, 4056, 4212, 4320, 4394, 4563, 4680, 5070, 5265, 5408, 5616, 6084, 6240, 6480, 6591, 6760, 7020, 7605, 8112, 8424, 8788, 9126, 9360, 10140, 10530, 10985, 11232, 12168, 12960, 13182, 13520, 13689, 14040, 15210, 16224, 16848, 17576, 18252, 18720, 19773, 20280, 21060, 21970, 22815, 24336, 26364, 27040, 27378, 28080, 30420, 32955, 33696, 35152, 36504, 39546, 40560, 42120, 43940, 45630, 48672, 52728, 54756, 56160, 59319, 60840, 65910, 68445, 70304, 73008, 79092, 81120, 84240, 87880, 91260, 98865, 105456, 109512, 118638, 121680, 131820, 136890, 146016, 158184, 168480, 175760, 177957, 182520, 197730, 210912, 219024, 237276, 243360, 263640, 273780, 296595, 316368, 351520, 355914, 365040, 395460, 438048, 474552, 527280, 547560, 593190, 632736, 711828, 730080, 790920, 889785, 949104, 1054560, 1095120, 1186380, 1423656, 1581840, 1779570, 1898208, 2190240, 2372760, 2847312, 3163680, 3559140, 4745520, 5694624, 7118280, 9491040, 14236560, 28473120]

約数ペア:

[(1, 28473120), (2, 14236560), (3, 9491040), (4, 7118280), (5, 5694624), (6, 4745520), (8, 3559140), (9, 3163680), (10, 2847312), (12, 2372760), (13, 2190240), (15, 1898208), (16, 1779570), (18, 1581840), (20, 1423656), (24, 1186380), (26, 1095120), (27, 1054560), (30, 949104), (32, 889785), (36, 790920), (39, 730080), (40, 711828), (45, 632736), (48, 593190), (52, 547560), (54, 527280), (60, 474552), (65, 438048), (72, 395460), (78, 365040), (80, 355914), (81, 351520), (90, 316368), (96, 296595), (104, 273780), (108, 263640), (117, 243360), (120, 237276), (130, 219024), (135, 210912), (144, 197730), (156, 182520), (160, 177957), (162, 175760), (169, 168480), (180, 158184), (195, 146016), (208, 136890), (216, 131820), (234, 121680), (240, 118638), (260, 109512), (270, 105456), (288, 98865), (312, 91260), (324, 87880), (338, 84240), (351, 81120), (360, 79092), (390, 73008), (405, 70304), (416, 68445), (432, 65910), (468, 60840), (480, 59319), (507, 56160), (520, 54756), (540, 52728), (585, 48672), (624, 45630), (648, 43940), (676, 42120), (702, 40560), (720, 39546), (780, 36504), (810, 35152), (845, 33696), (864, 32955), (936, 30420), (1014, 28080), (1040, 27378), (1053, 27040), (1080, 26364), (1170, 24336), (1248, 22815), (1296, 21970), (1352, 21060), (1404, 20280), (1440, 19773), (1521, 18720), (1560, 18252), (1620, 17576), (1690, 16848), (1755, 16224), (1872, 15210), (2028, 14040), (2080, 13689), (2106, 13520), (2160, 13182), (2197, 12960), (2340, 12168), (2535, 11232), (2592, 10985), (2704, 10530), (2808, 10140), (3042, 9360), (3120, 9126), (3240, 8788), (3380, 8424), (3510, 8112), (3744, 7605), (4056, 7020), (4212, 6760), (4320, 6591), (4394, 6480), (4563, 6240), (4680, 6084), (5070, 5616), (5265, 5408)]