321390720

素因数分解:

$2^7\times 3^3\times 5^1\times 7^1\times {\mathrm{2657}}^1$

素因数の和:2692

約数の個数: 256

約数和(自身を含む): 1301356800

約数和(自身を除く): 979966080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 336, 360, 378, 384, 420, 432, 448, 480, 504, 540, 560, 576, 630, 640, 672, 720, 756, 840, 864, 896, 945, 960, 1008, 1080, 1120, 1152, 1260, 1344, 1440, 1512, 1680, 1728, 1890, 1920, 2016, 2160, 2240, 2520, 2657, 2688, 2880, 3024, 3360, 3456, 3780, 4032, 4320, 4480, 5040, 5314, 5760, 6048, 6720, 7560, 7971, 8064, 8640, 10080, 10628, 12096, 13285, 13440, 15120, 15942, 17280, 18599, 20160, 21256, 23913, 24192, 26570, 30240, 31884, 37198, 39855, 40320, 42512, 47826, 53140, 55797, 60480, 63768, 71739, 74396, 79710, 85024, 92995, 95652, 106280, 111594, 119565, 120960, 127536, 143478, 148792, 159420, 167391, 170048, 185990, 191304, 212560, 223188, 239130, 255072, 278985, 286956, 297584, 318840, 334782, 340096, 358695, 371980, 382608, 425120, 446376, 478260, 502173, 510144, 557970, 573912, 595168, 637680, 669564, 717390, 743960, 765216, 836955, 850240, 892752, 956520, 1004346, 1020288, 1115940, 1147824, 1190336, 1275360, 1339128, 1434780, 1487920, 1530432, 1673910, 1700480, 1785504, 1913040, 2008692, 2231880, 2295648, 2380672, 2510865, 2550720, 2678256, 2869560, 2975840, 3060864, 3347820, 3571008, 3826080, 4017384, 4463760, 4591296, 5021730, 5101440, 5356512, 5739120, 5951680, 6695640, 7142016, 7652160, 8034768, 8927520, 9182592, 10043460, 10713024, 11478240, 11903360, 13391280, 15304320, 16069536, 17855040, 20086920, 21426048, 22956480, 26782560, 32139072, 35710080, 40173840, 45912960, 53565120, 64278144, 80347680, 107130240, 160695360, 321390720]

約数ペア:

[(1, 321390720), (2, 160695360), (3, 107130240), (4, 80347680), (5, 64278144), (6, 53565120), (7, 45912960), (8, 40173840), (9, 35710080), (10, 32139072), (12, 26782560), (14, 22956480), (15, 21426048), (16, 20086920), (18, 17855040), (20, 16069536), (21, 15304320), (24, 13391280), (27, 11903360), (28, 11478240), (30, 10713024), (32, 10043460), (35, 9182592), (36, 8927520), (40, 8034768), (42, 7652160), (45, 7142016), (48, 6695640), (54, 5951680), (56, 5739120), (60, 5356512), (63, 5101440), (64, 5021730), (70, 4591296), (72, 4463760), (80, 4017384), (84, 3826080), (90, 3571008), (96, 3347820), (105, 3060864), (108, 2975840), (112, 2869560), (120, 2678256), (126, 2550720), (128, 2510865), (135, 2380672), (140, 2295648), (144, 2231880), (160, 2008692), (168, 1913040), (180, 1785504), (189, 1700480), (192, 1673910), (210, 1530432), (216, 1487920), (224, 1434780), (240, 1339128), (252, 1275360), (270, 1190336), (280, 1147824), (288, 1115940), (315, 1020288), (320, 1004346), (336, 956520), (360, 892752), (378, 850240), (384, 836955), (420, 765216), (432, 743960), (448, 717390), (480, 669564), (504, 637680), (540, 595168), (560, 573912), (576, 557970), (630, 510144), (640, 502173), (672, 478260), (720, 446376), (756, 425120), (840, 382608), (864, 371980), (896, 358695), (945, 340096), (960, 334782), (1008, 318840), (1080, 297584), (1120, 286956), (1152, 278985), (1260, 255072), (1344, 239130), (1440, 223188), (1512, 212560), (1680, 191304), (1728, 185990), (1890, 170048), (1920, 167391), (2016, 159420), (2160, 148792), (2240, 143478), (2520, 127536), (2657, 120960), (2688, 119565), (2880, 111594), (3024, 106280), (3360, 95652), (3456, 92995), (3780, 85024), (4032, 79710), (4320, 74396), (4480, 71739), (5040, 63768), (5314, 60480), (5760, 55797), (6048, 53140), (6720, 47826), (7560, 42512), (7971, 40320), (8064, 39855), (8640, 37198), (10080, 31884), (10628, 30240), (12096, 26570), (13285, 24192), (13440, 23913), (15120, 21256), (15942, 20160), (17280, 18599)]