21885120

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1$

素因数の和:192

約数の個数: 224

約数和(自身を含む): 82296000

約数和(自身を除く): 60410880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 32, 34, 36, 40, 45, 48, 51, 54, 60, 64, 68, 72, 80, 85, 90, 96, 102, 108, 120, 135, 136, 144, 149, 153, 160, 170, 180, 192, 204, 216, 240, 255, 270, 272, 288, 298, 306, 320, 340, 360, 408, 432, 447, 459, 480, 510, 540, 544, 576, 596, 612, 680, 720, 745, 765, 816, 864, 894, 918, 960, 1020, 1080, 1088, 1192, 1224, 1341, 1360, 1440, 1490, 1530, 1632, 1728, 1788, 1836, 2040, 2160, 2235, 2295, 2384, 2448, 2533, 2682, 2720, 2880, 2980, 3060, 3264, 3576, 3672, 4023, 4080, 4320, 4470, 4590, 4768, 4896, 5066, 5364, 5440, 5960, 6120, 6705, 7152, 7344, 7599, 8046, 8160, 8640, 8940, 9180, 9536, 9792, 10132, 10728, 11920, 12240, 12665, 13410, 14304, 14688, 15198, 16092, 16320, 17880, 18360, 20115, 20264, 21456, 22797, 23840, 24480, 25330, 26820, 28608, 29376, 30396, 32184, 35760, 36720, 37995, 40230, 40528, 42912, 45594, 47680, 48960, 50660, 53640, 60792, 64368, 68391, 71520, 73440, 75990, 80460, 81056, 85824, 91188, 101320, 107280, 113985, 121584, 128736, 136782, 143040, 146880, 151980, 160920, 162112, 182376, 202640, 214560, 227970, 243168, 257472, 273564, 303960, 321840, 341955, 364752, 405280, 429120, 455940, 486336, 547128, 607920, 643680, 683910, 729504, 810560, 911880, 1094256, 1215840, 1287360, 1367820, 1459008, 1823760, 2188512, 2431680, 2735640, 3647520, 4377024, 5471280, 7295040, 10942560, 21885120]

約数ペア:

[(1, 21885120), (2, 10942560), (3, 7295040), (4, 5471280), (5, 4377024), (6, 3647520), (8, 2735640), (9, 2431680), (10, 2188512), (12, 1823760), (15, 1459008), (16, 1367820), (17, 1287360), (18, 1215840), (20, 1094256), (24, 911880), (27, 810560), (30, 729504), (32, 683910), (34, 643680), (36, 607920), (40, 547128), (45, 486336), (48, 455940), (51, 429120), (54, 405280), (60, 364752), (64, 341955), (68, 321840), (72, 303960), (80, 273564), (85, 257472), (90, 243168), (96, 227970), (102, 214560), (108, 202640), (120, 182376), (135, 162112), (136, 160920), (144, 151980), (149, 146880), (153, 143040), (160, 136782), (170, 128736), (180, 121584), (192, 113985), (204, 107280), (216, 101320), (240, 91188), (255, 85824), (270, 81056), (272, 80460), (288, 75990), (298, 73440), (306, 71520), (320, 68391), (340, 64368), (360, 60792), (408, 53640), (432, 50660), (447, 48960), (459, 47680), (480, 45594), (510, 42912), (540, 40528), (544, 40230), (576, 37995), (596, 36720), (612, 35760), (680, 32184), (720, 30396), (745, 29376), (765, 28608), (816, 26820), (864, 25330), (894, 24480), (918, 23840), (960, 22797), (1020, 21456), (1080, 20264), (1088, 20115), (1192, 18360), (1224, 17880), (1341, 16320), (1360, 16092), (1440, 15198), (1490, 14688), (1530, 14304), (1632, 13410), (1728, 12665), (1788, 12240), (1836, 11920), (2040, 10728), (2160, 10132), (2235, 9792), (2295, 9536), (2384, 9180), (2448, 8940), (2533, 8640), (2682, 8160), (2720, 8046), (2880, 7599), (2980, 7344), (3060, 7152), (3264, 6705), (3576, 6120), (3672, 5960), (4023, 5440), (4080, 5364), (4320, 5066), (4470, 4896), (4590, 4768)]