18666720

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:202

約数の個数: 192

約数和(自身を含む): 68040000

約数和(自身を除く): 49373280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 29, 30, 32, 36, 40, 45, 48, 54, 58, 60, 72, 80, 87, 90, 96, 108, 116, 120, 135, 144, 145, 149, 160, 174, 180, 216, 232, 240, 261, 270, 288, 290, 298, 348, 360, 432, 435, 447, 464, 480, 522, 540, 580, 596, 696, 720, 745, 783, 864, 870, 894, 928, 1044, 1080, 1160, 1192, 1305, 1341, 1392, 1440, 1490, 1566, 1740, 1788, 2088, 2160, 2235, 2320, 2384, 2610, 2682, 2784, 2980, 3132, 3480, 3576, 3915, 4023, 4176, 4320, 4321, 4470, 4640, 4768, 5220, 5364, 5960, 6264, 6705, 6960, 7152, 7830, 8046, 8352, 8642, 8940, 10440, 10728, 11920, 12528, 12963, 13410, 13920, 14304, 15660, 16092, 17284, 17880, 20115, 20880, 21456, 21605, 23840, 25056, 25926, 26820, 31320, 32184, 34568, 35760, 38889, 40230, 41760, 42912, 43210, 51852, 53640, 62640, 64368, 64815, 69136, 71520, 77778, 80460, 86420, 103704, 107280, 116667, 125280, 128736, 129630, 138272, 155556, 160920, 172840, 194445, 207408, 214560, 233334, 259260, 311112, 321840, 345680, 388890, 414816, 466668, 518520, 583335, 622224, 643680, 691360, 777780, 933336, 1037040, 1166670, 1244448, 1555560, 1866672, 2074080, 2333340, 3111120, 3733344, 4666680, 6222240, 9333360, 18666720]

約数ペア:

[(1, 18666720), (2, 9333360), (3, 6222240), (4, 4666680), (5, 3733344), (6, 3111120), (8, 2333340), (9, 2074080), (10, 1866672), (12, 1555560), (15, 1244448), (16, 1166670), (18, 1037040), (20, 933336), (24, 777780), (27, 691360), (29, 643680), (30, 622224), (32, 583335), (36, 518520), (40, 466668), (45, 414816), (48, 388890), (54, 345680), (58, 321840), (60, 311112), (72, 259260), (80, 233334), (87, 214560), (90, 207408), (96, 194445), (108, 172840), (116, 160920), (120, 155556), (135, 138272), (144, 129630), (145, 128736), (149, 125280), (160, 116667), (174, 107280), (180, 103704), (216, 86420), (232, 80460), (240, 77778), (261, 71520), (270, 69136), (288, 64815), (290, 64368), (298, 62640), (348, 53640), (360, 51852), (432, 43210), (435, 42912), (447, 41760), (464, 40230), (480, 38889), (522, 35760), (540, 34568), (580, 32184), (596, 31320), (696, 26820), (720, 25926), (745, 25056), (783, 23840), (864, 21605), (870, 21456), (894, 20880), (928, 20115), (1044, 17880), (1080, 17284), (1160, 16092), (1192, 15660), (1305, 14304), (1341, 13920), (1392, 13410), (1440, 12963), (1490, 12528), (1566, 11920), (1740, 10728), (1788, 10440), (2088, 8940), (2160, 8642), (2235, 8352), (2320, 8046), (2384, 7830), (2610, 7152), (2682, 6960), (2784, 6705), (2980, 6264), (3132, 5960), (3480, 5364), (3576, 5220), (3915, 4768), (4023, 4640), (4176, 4470), (4320, 4321)]