18887760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{709}}^1$

素因数の和:765

約数の個数: 120

約数和(自身を含む): 65237640

約数和(自身を除く): 46349880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 37, 40, 45, 48, 60, 72, 74, 80, 90, 111, 120, 144, 148, 180, 185, 222, 240, 296, 333, 360, 370, 444, 555, 592, 666, 709, 720, 740, 888, 1110, 1332, 1418, 1480, 1665, 1776, 2127, 2220, 2664, 2836, 2960, 3330, 3545, 4254, 4440, 5328, 5672, 6381, 6660, 7090, 8508, 8880, 10635, 11344, 12762, 13320, 14180, 17016, 21270, 25524, 26233, 26640, 28360, 31905, 34032, 42540, 51048, 52466, 56720, 63810, 78699, 85080, 102096, 104932, 127620, 131165, 157398, 170160, 209864, 236097, 255240, 262330, 314796, 393495, 419728, 472194, 510480, 524660, 629592, 786990, 944388, 1049320, 1180485, 1259184, 1573980, 1888776, 2098640, 2360970, 3147960, 3777552, 4721940, 6295920, 9443880, 18887760]

約数ペア:

[(1, 18887760), (2, 9443880), (3, 6295920), (4, 4721940), (5, 3777552), (6, 3147960), (8, 2360970), (9, 2098640), (10, 1888776), (12, 1573980), (15, 1259184), (16, 1180485), (18, 1049320), (20, 944388), (24, 786990), (30, 629592), (36, 524660), (37, 510480), (40, 472194), (45, 419728), (48, 393495), (60, 314796), (72, 262330), (74, 255240), (80, 236097), (90, 209864), (111, 170160), (120, 157398), (144, 131165), (148, 127620), (180, 104932), (185, 102096), (222, 85080), (240, 78699), (296, 63810), (333, 56720), (360, 52466), (370, 51048), (444, 42540), (555, 34032), (592, 31905), (666, 28360), (709, 26640), (720, 26233), (740, 25524), (888, 21270), (1110, 17016), (1332, 14180), (1418, 13320), (1480, 12762), (1665, 11344), (1776, 10635), (2127, 8880), (2220, 8508), (2664, 7090), (2836, 6660), (2960, 6381), (3330, 5672), (3545, 5328), (4254, 4440)]