400450560

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1$

素因数の和:117

約数の個数: 264

約数和(自身を含む): 1369295616

約数和(自身を除く): 968845056

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 31, 32, 40, 48, 58, 60, 62, 64, 80, 87, 93, 96, 116, 120, 124, 128, 145, 155, 160, 174, 186, 192, 232, 240, 248, 256, 290, 310, 320, 348, 372, 384, 435, 464, 465, 480, 496, 512, 580, 620, 640, 696, 744, 768, 841, 870, 899, 928, 930, 960, 992, 1024, 1160, 1240, 1280, 1392, 1488, 1536, 1682, 1740, 1798, 1856, 1860, 1920, 1984, 2320, 2480, 2523, 2560, 2697, 2784, 2976, 3072, 3364, 3480, 3596, 3712, 3720, 3840, 3968, 4205, 4495, 4640, 4960, 5046, 5120, 5394, 5568, 5952, 6728, 6960, 7192, 7424, 7440, 7680, 7936, 8410, 8990, 9280, 9920, 10092, 10788, 11136, 11904, 12615, 13456, 13485, 13920, 14384, 14848, 14880, 15360, 15872, 16820, 17980, 18560, 19840, 20184, 21576, 22272, 23808, 25230, 26071, 26912, 26970, 27840, 28768, 29696, 29760, 31744, 33640, 35960, 37120, 39680, 40368, 43152, 44544, 47616, 50460, 52142, 53824, 53940, 55680, 57536, 59520, 67280, 71920, 74240, 78213, 79360, 80736, 86304, 89088, 95232, 100920, 104284, 107648, 107880, 111360, 115072, 119040, 130355, 134560, 143840, 148480, 156426, 158720, 161472, 172608, 201840, 208568, 215296, 215760, 222720, 230144, 238080, 260710, 269120, 287680, 312852, 322944, 345216, 391065, 403680, 417136, 430592, 431520, 445440, 460288, 476160, 521420, 538240, 575360, 625704, 645888, 690432, 782130, 807360, 834272, 861184, 863040, 920576, 1042840, 1076480, 1150720, 1251408, 1291776, 1380864, 1564260, 1614720, 1668544, 1726080, 2085680, 2152960, 2301440, 2502816, 2583552, 2761728, 3128520, 3229440, 3337088, 3452160, 4171360, 4305920, 4602880, 5005632, 6257040, 6458880, 6674176, 6904320, 8342720, 10011264, 12514080, 12917760, 13348352, 13808640, 16685440, 20022528, 25028160, 26696704, 33370880, 40045056, 50056320, 66741760, 80090112, 100112640, 133483520, 200225280, 400450560]

約数ペア:

[(1, 400450560), (2, 200225280), (3, 133483520), (4, 100112640), (5, 80090112), (6, 66741760), (8, 50056320), (10, 40045056), (12, 33370880), (15, 26696704), (16, 25028160), (20, 20022528), (24, 16685440), (29, 13808640), (30, 13348352), (31, 12917760), (32, 12514080), (40, 10011264), (48, 8342720), (58, 6904320), (60, 6674176), (62, 6458880), (64, 6257040), (80, 5005632), (87, 4602880), (93, 4305920), (96, 4171360), (116, 3452160), (120, 3337088), (124, 3229440), (128, 3128520), (145, 2761728), (155, 2583552), (160, 2502816), (174, 2301440), (186, 2152960), (192, 2085680), (232, 1726080), (240, 1668544), (248, 1614720), (256, 1564260), (290, 1380864), (310, 1291776), (320, 1251408), (348, 1150720), (372, 1076480), (384, 1042840), (435, 920576), (464, 863040), (465, 861184), (480, 834272), (496, 807360), (512, 782130), (580, 690432), (620, 645888), (640, 625704), (696, 575360), (744, 538240), (768, 521420), (841, 476160), (870, 460288), (899, 445440), (928, 431520), (930, 430592), (960, 417136), (992, 403680), (1024, 391065), (1160, 345216), (1240, 322944), (1280, 312852), (1392, 287680), (1488, 269120), (1536, 260710), (1682, 238080), (1740, 230144), (1798, 222720), (1856, 215760), (1860, 215296), (1920, 208568), (1984, 201840), (2320, 172608), (2480, 161472), (2523, 158720), (2560, 156426), (2697, 148480), (2784, 143840), (2976, 134560), (3072, 130355), (3364, 119040), (3480, 115072), (3596, 111360), (3712, 107880), (3720, 107648), (3840, 104284), (3968, 100920), (4205, 95232), (4495, 89088), (4640, 86304), (4960, 80736), (5046, 79360), (5120, 78213), (5394, 74240), (5568, 71920), (5952, 67280), (6728, 59520), (6960, 57536), (7192, 55680), (7424, 53940), (7440, 53824), (7680, 52142), (7936, 50460), (8410, 47616), (8990, 44544), (9280, 43152), (9920, 40368), (10092, 39680), (10788, 37120), (11136, 35960), (11904, 33640), (12615, 31744), (13456, 29760), (13485, 29696), (13920, 28768), (14384, 27840), (14848, 26970), (14880, 26912), (15360, 26071), (15872, 25230), (16820, 23808), (17980, 22272), (18560, 21576), (19840, 20184)]