18746640

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1$

素因数の和:299

約数の個数: 200

約数和(自身を含む): 71299008

約数和(自身を除く): 52552368

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 48, 54, 55, 60, 66, 72, 80, 81, 88, 90, 99, 108, 110, 120, 132, 135, 144, 162, 165, 176, 180, 198, 216, 220, 240, 263, 264, 270, 297, 324, 330, 360, 396, 405, 432, 440, 495, 526, 528, 540, 594, 648, 660, 720, 789, 792, 810, 880, 891, 990, 1052, 1080, 1188, 1296, 1315, 1320, 1485, 1578, 1584, 1620, 1782, 1980, 2104, 2160, 2367, 2376, 2630, 2640, 2893, 2970, 3156, 3240, 3564, 3945, 3960, 4208, 4455, 4734, 4752, 5260, 5786, 5940, 6312, 6480, 7101, 7128, 7890, 7920, 8679, 8910, 9468, 10520, 11572, 11835, 11880, 12624, 14202, 14256, 14465, 15780, 17358, 17820, 18936, 21040, 21303, 23144, 23670, 23760, 26037, 28404, 28930, 31560, 34716, 35505, 35640, 37872, 42606, 43395, 46288, 47340, 52074, 56808, 57860, 63120, 69432, 71010, 71280, 78111, 85212, 86790, 94680, 104148, 106515, 113616, 115720, 130185, 138864, 142020, 156222, 170424, 173580, 189360, 208296, 213030, 231440, 234333, 260370, 284040, 312444, 340848, 347160, 390555, 416592, 426060, 468666, 520740, 568080, 624888, 694320, 781110, 852120, 937332, 1041480, 1171665, 1249776, 1562220, 1704240, 1874664, 2082960, 2343330, 3124440, 3749328, 4686660, 6248880, 9373320, 18746640]

約数ペア:

[(1, 18746640), (2, 9373320), (3, 6248880), (4, 4686660), (5, 3749328), (6, 3124440), (8, 2343330), (9, 2082960), (10, 1874664), (11, 1704240), (12, 1562220), (15, 1249776), (16, 1171665), (18, 1041480), (20, 937332), (22, 852120), (24, 781110), (27, 694320), (30, 624888), (33, 568080), (36, 520740), (40, 468666), (44, 426060), (45, 416592), (48, 390555), (54, 347160), (55, 340848), (60, 312444), (66, 284040), (72, 260370), (80, 234333), (81, 231440), (88, 213030), (90, 208296), (99, 189360), (108, 173580), (110, 170424), (120, 156222), (132, 142020), (135, 138864), (144, 130185), (162, 115720), (165, 113616), (176, 106515), (180, 104148), (198, 94680), (216, 86790), (220, 85212), (240, 78111), (263, 71280), (264, 71010), (270, 69432), (297, 63120), (324, 57860), (330, 56808), (360, 52074), (396, 47340), (405, 46288), (432, 43395), (440, 42606), (495, 37872), (526, 35640), (528, 35505), (540, 34716), (594, 31560), (648, 28930), (660, 28404), (720, 26037), (789, 23760), (792, 23670), (810, 23144), (880, 21303), (891, 21040), (990, 18936), (1052, 17820), (1080, 17358), (1188, 15780), (1296, 14465), (1315, 14256), (1320, 14202), (1485, 12624), (1578, 11880), (1584, 11835), (1620, 11572), (1782, 10520), (1980, 9468), (2104, 8910), (2160, 8679), (2367, 7920), (2376, 7890), (2630, 7128), (2640, 7101), (2893, 6480), (2970, 6312), (3156, 5940), (3240, 5786), (3564, 5260), (3945, 4752), (3960, 4734), (4208, 4455)]