78660720

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:285

約数の個数: 200

約数和(自身を含む): 279074400

約数和(自身を除く): 200413680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 61, 72, 80, 81, 90, 108, 120, 122, 135, 144, 162, 180, 183, 199, 216, 240, 244, 270, 305, 324, 360, 366, 398, 405, 432, 488, 540, 549, 597, 610, 648, 720, 732, 796, 810, 915, 976, 995, 1080, 1098, 1194, 1220, 1296, 1464, 1592, 1620, 1647, 1791, 1830, 1990, 2160, 2196, 2388, 2440, 2745, 2928, 2985, 3184, 3240, 3294, 3582, 3660, 3980, 4392, 4776, 4880, 4941, 5373, 5490, 5970, 6480, 6588, 7164, 7320, 7960, 8235, 8784, 8955, 9552, 9882, 10746, 10980, 11940, 12139, 13176, 14328, 14640, 15920, 16119, 16470, 17910, 19764, 21492, 21960, 23880, 24278, 24705, 26352, 26865, 28656, 32238, 32940, 35820, 36417, 39528, 42984, 43920, 47760, 48556, 49410, 53730, 60695, 64476, 65880, 71640, 72834, 79056, 80595, 85968, 97112, 98820, 107460, 109251, 121390, 128952, 131760, 143280, 145668, 161190, 182085, 194224, 197640, 214920, 218502, 242780, 257904, 291336, 322380, 327753, 364170, 395280, 429840, 437004, 485560, 546255, 582672, 644760, 655506, 728340, 874008, 971120, 983259, 1092510, 1289520, 1311012, 1456680, 1638765, 1748016, 1966518, 2185020, 2622024, 2913360, 3277530, 3933036, 4370040, 4916295, 5244048, 6555060, 7866072, 8740080, 9832590, 13110120, 15732144, 19665180, 26220240, 39330360, 78660720]

約数ペア:

[(1, 78660720), (2, 39330360), (3, 26220240), (4, 19665180), (5, 15732144), (6, 13110120), (8, 9832590), (9, 8740080), (10, 7866072), (12, 6555060), (15, 5244048), (16, 4916295), (18, 4370040), (20, 3933036), (24, 3277530), (27, 2913360), (30, 2622024), (36, 2185020), (40, 1966518), (45, 1748016), (48, 1638765), (54, 1456680), (60, 1311012), (61, 1289520), (72, 1092510), (80, 983259), (81, 971120), (90, 874008), (108, 728340), (120, 655506), (122, 644760), (135, 582672), (144, 546255), (162, 485560), (180, 437004), (183, 429840), (199, 395280), (216, 364170), (240, 327753), (244, 322380), (270, 291336), (305, 257904), (324, 242780), (360, 218502), (366, 214920), (398, 197640), (405, 194224), (432, 182085), (488, 161190), (540, 145668), (549, 143280), (597, 131760), (610, 128952), (648, 121390), (720, 109251), (732, 107460), (796, 98820), (810, 97112), (915, 85968), (976, 80595), (995, 79056), (1080, 72834), (1098, 71640), (1194, 65880), (1220, 64476), (1296, 60695), (1464, 53730), (1592, 49410), (1620, 48556), (1647, 47760), (1791, 43920), (1830, 42984), (1990, 39528), (2160, 36417), (2196, 35820), (2388, 32940), (2440, 32238), (2745, 28656), (2928, 26865), (2985, 26352), (3184, 24705), (3240, 24278), (3294, 23880), (3582, 21960), (3660, 21492), (3980, 19764), (4392, 17910), (4776, 16470), (4880, 16119), (4941, 15920), (5373, 14640), (5490, 14328), (5970, 13176), (6480, 12139), (6588, 11940), (7164, 10980), (7320, 10746), (7960, 9882), (8235, 9552), (8784, 8955)]