15399720

素因数分解:

$2^3\times 3^4\times 5^1\times 7^2\times {\mathrm{97}}^1$

素因数の和:134

約数の個数: 240

約数和(自身を含む): 60831540

約数和(自身を除く): 45431820

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 81, 84, 90, 97, 98, 105, 108, 120, 126, 135, 140, 147, 162, 168, 180, 189, 194, 196, 210, 216, 245, 252, 270, 280, 291, 294, 315, 324, 360, 378, 388, 392, 405, 420, 441, 485, 490, 504, 540, 567, 582, 588, 630, 648, 679, 735, 756, 776, 810, 840, 873, 882, 945, 970, 980, 1080, 1134, 1164, 1176, 1260, 1323, 1358, 1455, 1470, 1512, 1620, 1746, 1764, 1890, 1940, 1960, 2037, 2205, 2268, 2328, 2520, 2619, 2646, 2716, 2835, 2910, 2940, 3240, 3395, 3492, 3528, 3780, 3880, 3969, 4074, 4365, 4410, 4536, 4753, 5238, 5292, 5432, 5670, 5820, 5880, 6111, 6615, 6790, 6984, 7560, 7857, 7938, 8148, 8730, 8820, 9506, 10185, 10476, 10584, 11340, 11640, 12222, 13095, 13230, 13580, 14259, 15714, 15876, 16296, 17460, 17640, 18333, 19012, 19845, 20370, 20952, 22680, 23765, 24444, 26190, 26460, 27160, 28518, 30555, 31428, 31752, 34920, 36666, 38024, 39285, 39690, 40740, 42777, 47530, 48888, 52380, 52920, 54999, 57036, 61110, 62856, 71295, 73332, 78570, 79380, 81480, 85554, 91665, 95060, 104760, 109998, 114072, 122220, 128331, 142590, 146664, 157140, 158760, 171108, 183330, 190120, 213885, 219996, 244440, 256662, 274995, 285180, 314280, 342216, 366660, 384993, 427770, 439992, 513324, 549990, 570360, 641655, 733320, 769986, 855540, 1026648, 1099980, 1283310, 1539972, 1711080, 1924965, 2199960, 2566620, 3079944, 3849930, 5133240, 7699860, 15399720]

約数ペア:

[(1, 15399720), (2, 7699860), (3, 5133240), (4, 3849930), (5, 3079944), (6, 2566620), (7, 2199960), (8, 1924965), (9, 1711080), (10, 1539972), (12, 1283310), (14, 1099980), (15, 1026648), (18, 855540), (20, 769986), (21, 733320), (24, 641655), (27, 570360), (28, 549990), (30, 513324), (35, 439992), (36, 427770), (40, 384993), (42, 366660), (45, 342216), (49, 314280), (54, 285180), (56, 274995), (60, 256662), (63, 244440), (70, 219996), (72, 213885), (81, 190120), (84, 183330), (90, 171108), (97, 158760), (98, 157140), (105, 146664), (108, 142590), (120, 128331), (126, 122220), (135, 114072), (140, 109998), (147, 104760), (162, 95060), (168, 91665), (180, 85554), (189, 81480), (194, 79380), (196, 78570), (210, 73332), (216, 71295), (245, 62856), (252, 61110), (270, 57036), (280, 54999), (291, 52920), (294, 52380), (315, 48888), (324, 47530), (360, 42777), (378, 40740), (388, 39690), (392, 39285), (405, 38024), (420, 36666), (441, 34920), (485, 31752), (490, 31428), (504, 30555), (540, 28518), (567, 27160), (582, 26460), (588, 26190), (630, 24444), (648, 23765), (679, 22680), (735, 20952), (756, 20370), (776, 19845), (810, 19012), (840, 18333), (873, 17640), (882, 17460), (945, 16296), (970, 15876), (980, 15714), (1080, 14259), (1134, 13580), (1164, 13230), (1176, 13095), (1260, 12222), (1323, 11640), (1358, 11340), (1455, 10584), (1470, 10476), (1512, 10185), (1620, 9506), (1746, 8820), (1764, 8730), (1890, 8148), (1940, 7938), (1960, 7857), (2037, 7560), (2205, 6984), (2268, 6790), (2328, 6615), (2520, 6111), (2619, 5880), (2646, 5820), (2716, 5670), (2835, 5432), (2910, 5292), (2940, 5238), (3240, 4753), (3395, 4536), (3492, 4410), (3528, 4365), (3780, 4074), (3880, 3969)]