1640790816

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{997}}^1$

素因数の和:1127

約数の個数: 192

約数和(自身を含む): 5150638080

約数和(自身を除く): 3509847264

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 32, 42, 48, 56, 62, 79, 84, 93, 96, 112, 124, 158, 168, 186, 217, 224, 237, 248, 316, 336, 372, 434, 474, 496, 553, 632, 651, 672, 744, 868, 948, 992, 997, 1106, 1264, 1302, 1488, 1659, 1736, 1896, 1994, 2212, 2449, 2528, 2604, 2976, 2991, 3318, 3472, 3792, 3988, 4424, 4898, 5208, 5982, 6636, 6944, 6979, 7347, 7584, 7976, 8848, 9796, 10416, 11964, 13272, 13958, 14694, 15952, 17143, 17696, 19592, 20832, 20937, 23928, 26544, 27916, 29388, 30907, 31904, 34286, 39184, 41874, 47856, 51429, 53088, 55832, 58776, 61814, 68572, 78368, 78763, 83748, 92721, 95712, 102858, 111664, 117552, 123628, 137144, 157526, 167496, 185442, 205716, 216349, 223328, 235104, 236289, 247256, 274288, 315052, 334992, 370884, 411432, 432698, 472578, 494512, 548576, 551341, 630104, 649047, 669984, 741768, 822864, 865396, 945156, 989024, 1102682, 1260208, 1298094, 1483536, 1645728, 1654023, 1730792, 1890312, 2205364, 2441653, 2520416, 2596188, 2967072, 3308046, 3461584, 3780624, 4410728, 4883306, 5192376, 6616092, 6923168, 7324959, 7561248, 8821456, 9766612, 10384752, 13232184, 14649918, 17091571, 17642912, 19533224, 20769504, 26464368, 29299836, 34183142, 39066448, 51274713, 52928736, 58599672, 68366284, 78132896, 102549426, 117199344, 136732568, 205098852, 234398688, 273465136, 410197704, 546930272, 820395408, 1640790816]

約数ペア:

[(1, 1640790816), (2, 820395408), (3, 546930272), (4, 410197704), (6, 273465136), (7, 234398688), (8, 205098852), (12, 136732568), (14, 117199344), (16, 102549426), (21, 78132896), (24, 68366284), (28, 58599672), (31, 52928736), (32, 51274713), (42, 39066448), (48, 34183142), (56, 29299836), (62, 26464368), (79, 20769504), (84, 19533224), (93, 17642912), (96, 17091571), (112, 14649918), (124, 13232184), (158, 10384752), (168, 9766612), (186, 8821456), (217, 7561248), (224, 7324959), (237, 6923168), (248, 6616092), (316, 5192376), (336, 4883306), (372, 4410728), (434, 3780624), (474, 3461584), (496, 3308046), (553, 2967072), (632, 2596188), (651, 2520416), (672, 2441653), (744, 2205364), (868, 1890312), (948, 1730792), (992, 1654023), (997, 1645728), (1106, 1483536), (1264, 1298094), (1302, 1260208), (1488, 1102682), (1659, 989024), (1736, 945156), (1896, 865396), (1994, 822864), (2212, 741768), (2449, 669984), (2528, 649047), (2604, 630104), (2976, 551341), (2991, 548576), (3318, 494512), (3472, 472578), (3792, 432698), (3988, 411432), (4424, 370884), (4898, 334992), (5208, 315052), (5982, 274288), (6636, 247256), (6944, 236289), (6979, 235104), (7347, 223328), (7584, 216349), (7976, 205716), (8848, 185442), (9796, 167496), (10416, 157526), (11964, 137144), (13272, 123628), (13958, 117552), (14694, 111664), (15952, 102858), (17143, 95712), (17696, 92721), (19592, 83748), (20832, 78763), (20937, 78368), (23928, 68572), (26544, 61814), (27916, 58776), (29388, 55832), (30907, 53088), (31904, 51429), (34286, 47856), (39184, 41874)]