311120640

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{239}}^1$

素因数の和:379

約数の個数: 216

約数和(自身を含む): 1090514880

約数和(自身を除く): 779394240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 113, 120, 128, 144, 160, 180, 192, 226, 239, 240, 256, 288, 320, 339, 360, 384, 452, 478, 480, 565, 576, 640, 678, 717, 720, 768, 904, 956, 960, 1017, 1130, 1152, 1195, 1280, 1356, 1434, 1440, 1695, 1808, 1912, 1920, 2034, 2151, 2260, 2304, 2390, 2712, 2868, 2880, 3390, 3585, 3616, 3824, 3840, 4068, 4302, 4520, 4780, 5085, 5424, 5736, 5760, 6780, 7170, 7232, 7648, 8136, 8604, 9040, 9560, 10170, 10755, 10848, 11472, 11520, 13560, 14340, 14464, 15296, 16272, 17208, 18080, 19120, 20340, 21510, 21696, 22944, 27007, 27120, 28680, 28928, 30592, 32544, 34416, 36160, 38240, 40680, 43020, 43392, 45888, 54014, 54240, 57360, 61184, 65088, 68832, 72320, 76480, 81021, 81360, 86040, 86784, 91776, 108028, 108480, 114720, 130176, 135035, 137664, 144640, 152960, 162042, 162720, 172080, 183552, 216056, 216960, 229440, 243063, 260352, 270070, 275328, 305920, 324084, 325440, 344160, 405105, 432112, 433920, 458880, 486126, 540140, 550656, 648168, 650880, 688320, 810210, 864224, 917760, 972252, 1080280, 1215315, 1296336, 1301760, 1376640, 1620420, 1728448, 1944504, 2160560, 2430630, 2592672, 2753280, 3240840, 3456896, 3889008, 4321120, 4861260, 5185344, 6481680, 6913792, 7778016, 8642240, 9722520, 10370688, 12963360, 15556032, 17284480, 19445040, 20741376, 25926720, 31112064, 34568960, 38890080, 51853440, 62224128, 77780160, 103706880, 155560320, 311120640]

約数ペア:

[(1, 311120640), (2, 155560320), (3, 103706880), (4, 77780160), (5, 62224128), (6, 51853440), (8, 38890080), (9, 34568960), (10, 31112064), (12, 25926720), (15, 20741376), (16, 19445040), (18, 17284480), (20, 15556032), (24, 12963360), (30, 10370688), (32, 9722520), (36, 8642240), (40, 7778016), (45, 6913792), (48, 6481680), (60, 5185344), (64, 4861260), (72, 4321120), (80, 3889008), (90, 3456896), (96, 3240840), (113, 2753280), (120, 2592672), (128, 2430630), (144, 2160560), (160, 1944504), (180, 1728448), (192, 1620420), (226, 1376640), (239, 1301760), (240, 1296336), (256, 1215315), (288, 1080280), (320, 972252), (339, 917760), (360, 864224), (384, 810210), (452, 688320), (478, 650880), (480, 648168), (565, 550656), (576, 540140), (640, 486126), (678, 458880), (717, 433920), (720, 432112), (768, 405105), (904, 344160), (956, 325440), (960, 324084), (1017, 305920), (1130, 275328), (1152, 270070), (1195, 260352), (1280, 243063), (1356, 229440), (1434, 216960), (1440, 216056), (1695, 183552), (1808, 172080), (1912, 162720), (1920, 162042), (2034, 152960), (2151, 144640), (2260, 137664), (2304, 135035), (2390, 130176), (2712, 114720), (2868, 108480), (2880, 108028), (3390, 91776), (3585, 86784), (3616, 86040), (3824, 81360), (3840, 81021), (4068, 76480), (4302, 72320), (4520, 68832), (4780, 65088), (5085, 61184), (5424, 57360), (5736, 54240), (5760, 54014), (6780, 45888), (7170, 43392), (7232, 43020), (7648, 40680), (8136, 38240), (8604, 36160), (9040, 34416), (9560, 32544), (10170, 30592), (10755, 28928), (10848, 28680), (11472, 27120), (11520, 27007), (13560, 22944), (14340, 21696), (14464, 21510), (15296, 20340), (16272, 19120), (17208, 18080)]