640217088

素因数分解:

$2^{12}\times 3^3\times 7^1\times {\mathrm{827}}^1$

素因数の和:867

約数の個数: 208

約数和(自身を含む): 2170287360

約数和(自身を除く): 1530070272

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 84, 96, 108, 112, 126, 128, 144, 168, 189, 192, 216, 224, 252, 256, 288, 336, 378, 384, 432, 448, 504, 512, 576, 672, 756, 768, 827, 864, 896, 1008, 1024, 1152, 1344, 1512, 1536, 1654, 1728, 1792, 2016, 2048, 2304, 2481, 2688, 3024, 3072, 3308, 3456, 3584, 4032, 4096, 4608, 4962, 5376, 5789, 6048, 6144, 6616, 6912, 7168, 7443, 8064, 9216, 9924, 10752, 11578, 12096, 12288, 13232, 13824, 14336, 14886, 16128, 17367, 18432, 19848, 21504, 22329, 23156, 24192, 26464, 27648, 28672, 29772, 32256, 34734, 36864, 39696, 43008, 44658, 46312, 48384, 52101, 52928, 55296, 59544, 64512, 69468, 79392, 86016, 89316, 92624, 96768, 104202, 105856, 110592, 119088, 129024, 138936, 156303, 158784, 178632, 185248, 193536, 208404, 211712, 238176, 258048, 277872, 312606, 317568, 357264, 370496, 387072, 416808, 423424, 476352, 555744, 625212, 635136, 714528, 740992, 774144, 833616, 846848, 952704, 1111488, 1250424, 1270272, 1429056, 1481984, 1667232, 1693696, 1905408, 2222976, 2500848, 2540544, 2858112, 2963968, 3334464, 3387392, 3810816, 4445952, 5001696, 5081088, 5716224, 5927936, 6668928, 7621632, 8891904, 10003392, 10162176, 11432448, 11855872, 13337856, 15243264, 17783808, 20006784, 22864896, 23711744, 26675712, 30486528, 35567616, 40013568, 45729792, 53351424, 71135232, 80027136, 91459584, 106702848, 160054272, 213405696, 320108544, 640217088]

約数ペア:

[(1, 640217088), (2, 320108544), (3, 213405696), (4, 160054272), (6, 106702848), (7, 91459584), (8, 80027136), (9, 71135232), (12, 53351424), (14, 45729792), (16, 40013568), (18, 35567616), (21, 30486528), (24, 26675712), (27, 23711744), (28, 22864896), (32, 20006784), (36, 17783808), (42, 15243264), (48, 13337856), (54, 11855872), (56, 11432448), (63, 10162176), (64, 10003392), (72, 8891904), (84, 7621632), (96, 6668928), (108, 5927936), (112, 5716224), (126, 5081088), (128, 5001696), (144, 4445952), (168, 3810816), (189, 3387392), (192, 3334464), (216, 2963968), (224, 2858112), (252, 2540544), (256, 2500848), (288, 2222976), (336, 1905408), (378, 1693696), (384, 1667232), (432, 1481984), (448, 1429056), (504, 1270272), (512, 1250424), (576, 1111488), (672, 952704), (756, 846848), (768, 833616), (827, 774144), (864, 740992), (896, 714528), (1008, 635136), (1024, 625212), (1152, 555744), (1344, 476352), (1512, 423424), (1536, 416808), (1654, 387072), (1728, 370496), (1792, 357264), (2016, 317568), (2048, 312606), (2304, 277872), (2481, 258048), (2688, 238176), (3024, 211712), (3072, 208404), (3308, 193536), (3456, 185248), (3584, 178632), (4032, 158784), (4096, 156303), (4608, 138936), (4962, 129024), (5376, 119088), (5789, 110592), (6048, 105856), (6144, 104202), (6616, 96768), (6912, 92624), (7168, 89316), (7443, 86016), (8064, 79392), (9216, 69468), (9924, 64512), (10752, 59544), (11578, 55296), (12096, 52928), (12288, 52101), (13232, 48384), (13824, 46312), (14336, 44658), (14886, 43008), (16128, 39696), (17367, 36864), (18432, 34734), (19848, 32256), (21504, 29772), (22329, 28672), (23156, 27648), (24192, 26464)]