640937808

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{331}}^1$

素因数の和:482

約数の個数: 240

約数和(自身を含む): 2196395136

約数和(自身を除く): 1555457328

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 28, 34, 36, 42, 48, 51, 56, 63, 68, 72, 84, 102, 112, 113, 119, 126, 136, 144, 153, 168, 204, 226, 238, 252, 272, 306, 331, 336, 339, 357, 408, 452, 476, 504, 612, 662, 678, 714, 791, 816, 904, 952, 993, 1008, 1017, 1071, 1224, 1324, 1356, 1428, 1582, 1808, 1904, 1921, 1986, 2034, 2142, 2317, 2373, 2448, 2648, 2712, 2856, 2979, 3164, 3842, 3972, 4068, 4284, 4634, 4746, 5296, 5424, 5627, 5712, 5763, 5958, 6328, 6951, 7119, 7684, 7944, 8136, 8568, 9268, 9492, 11254, 11526, 11916, 12656, 13447, 13902, 14238, 15368, 15888, 16272, 16881, 17136, 17289, 18536, 18984, 20853, 22508, 23052, 23832, 26894, 27804, 28476, 30736, 33762, 34578, 37072, 37403, 37968, 39389, 40341, 41706, 45016, 46104, 47664, 50643, 53788, 55608, 56952, 67524, 69156, 74806, 78778, 80682, 83412, 90032, 92208, 101286, 107576, 111216, 112209, 113904, 118167, 121023, 135048, 138312, 149612, 157556, 161364, 166824, 202572, 215152, 224418, 236334, 242046, 261821, 270096, 276624, 299224, 315112, 322728, 333648, 336627, 354501, 405144, 448836, 472668, 484092, 523642, 598448, 630224, 635851, 645456, 673254, 709002, 785463, 810288, 897672, 945336, 968184, 1047284, 1271702, 1346508, 1418004, 1570926, 1795344, 1890672, 1907553, 1936368, 2094568, 2356389, 2543404, 2693016, 2836008, 3141852, 3815106, 4189136, 4450957, 4712778, 5086808, 5386032, 5672016, 5722659, 6283704, 7630212, 8901914, 9425556, 10173616, 11445318, 12567408, 13352871, 15260424, 17803828, 18851112, 22890636, 26705742, 30520848, 35607656, 37702224, 40058613, 45781272, 53411484, 71215312, 80117226, 91562544, 106822968, 160234452, 213645936, 320468904, 640937808]

約数ペア:

[(1, 640937808), (2, 320468904), (3, 213645936), (4, 160234452), (6, 106822968), (7, 91562544), (8, 80117226), (9, 71215312), (12, 53411484), (14, 45781272), (16, 40058613), (17, 37702224), (18, 35607656), (21, 30520848), (24, 26705742), (28, 22890636), (34, 18851112), (36, 17803828), (42, 15260424), (48, 13352871), (51, 12567408), (56, 11445318), (63, 10173616), (68, 9425556), (72, 8901914), (84, 7630212), (102, 6283704), (112, 5722659), (113, 5672016), (119, 5386032), (126, 5086808), (136, 4712778), (144, 4450957), (153, 4189136), (168, 3815106), (204, 3141852), (226, 2836008), (238, 2693016), (252, 2543404), (272, 2356389), (306, 2094568), (331, 1936368), (336, 1907553), (339, 1890672), (357, 1795344), (408, 1570926), (452, 1418004), (476, 1346508), (504, 1271702), (612, 1047284), (662, 968184), (678, 945336), (714, 897672), (791, 810288), (816, 785463), (904, 709002), (952, 673254), (993, 645456), (1008, 635851), (1017, 630224), (1071, 598448), (1224, 523642), (1324, 484092), (1356, 472668), (1428, 448836), (1582, 405144), (1808, 354501), (1904, 336627), (1921, 333648), (1986, 322728), (2034, 315112), (2142, 299224), (2317, 276624), (2373, 270096), (2448, 261821), (2648, 242046), (2712, 236334), (2856, 224418), (2979, 215152), (3164, 202572), (3842, 166824), (3972, 161364), (4068, 157556), (4284, 149612), (4634, 138312), (4746, 135048), (5296, 121023), (5424, 118167), (5627, 113904), (5712, 112209), (5763, 111216), (5958, 107576), (6328, 101286), (6951, 92208), (7119, 90032), (7684, 83412), (7944, 80682), (8136, 78778), (8568, 74806), (9268, 69156), (9492, 67524), (11254, 56952), (11526, 55608), (11916, 53788), (12656, 50643), (13447, 47664), (13902, 46104), (14238, 45016), (15368, 41706), (15888, 40341), (16272, 39389), (16881, 37968), (17136, 37403), (17289, 37072), (18536, 34578), (18984, 33762), (20853, 30736), (22508, 28476), (23052, 27804), (23832, 26894)]