398943216

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{751}}^1$

素因数の和:820

約数の個数: 240

約数和(自身を含む): 1396482048

約数和(自身を除く): 997538832

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 28, 31, 34, 36, 42, 48, 51, 56, 62, 63, 68, 72, 84, 93, 102, 112, 119, 124, 126, 136, 144, 153, 168, 186, 204, 217, 238, 248, 252, 272, 279, 306, 336, 357, 372, 408, 434, 476, 496, 504, 527, 558, 612, 651, 714, 744, 751, 816, 868, 952, 1008, 1054, 1071, 1116, 1224, 1302, 1428, 1488, 1502, 1581, 1736, 1904, 1953, 2108, 2142, 2232, 2253, 2448, 2604, 2856, 3004, 3162, 3472, 3689, 3906, 4216, 4284, 4464, 4506, 4743, 5208, 5257, 5712, 6008, 6324, 6759, 7378, 7812, 8432, 8568, 9012, 9486, 10416, 10514, 11067, 12016, 12648, 12767, 13518, 14756, 15624, 15771, 17136, 18024, 18972, 21028, 22134, 23281, 25296, 25534, 27036, 29512, 31248, 31542, 33201, 36048, 37944, 38301, 42056, 44268, 46562, 47313, 51068, 54072, 59024, 63084, 66402, 69843, 75888, 76602, 84112, 88536, 89369, 93124, 94626, 102136, 108144, 114903, 126168, 132804, 139686, 153204, 162967, 177072, 178738, 186248, 189252, 204272, 209529, 229806, 252336, 265608, 268107, 279372, 306408, 325934, 357476, 372496, 378504, 395777, 419058, 459612, 488901, 531216, 536214, 558744, 612816, 651868, 714952, 757008, 791554, 804321, 838116, 919224, 977802, 1072428, 1117488, 1187331, 1303736, 1429904, 1466703, 1583108, 1608642, 1676232, 1838448, 1955604, 2144856, 2374662, 2607472, 2770439, 2933406, 3166216, 3217284, 3352464, 3561993, 3911208, 4289712, 4749324, 5540878, 5866812, 6332432, 6434568, 7123986, 7822416, 8311317, 9498648, 11081756, 11733624, 12869136, 14247972, 16622634, 18997296, 22163512, 23467248, 24933951, 28495944, 33245268, 44327024, 49867902, 56991888, 66490536, 99735804, 132981072, 199471608, 398943216]

約数ペア:

[(1, 398943216), (2, 199471608), (3, 132981072), (4, 99735804), (6, 66490536), (7, 56991888), (8, 49867902), (9, 44327024), (12, 33245268), (14, 28495944), (16, 24933951), (17, 23467248), (18, 22163512), (21, 18997296), (24, 16622634), (28, 14247972), (31, 12869136), (34, 11733624), (36, 11081756), (42, 9498648), (48, 8311317), (51, 7822416), (56, 7123986), (62, 6434568), (63, 6332432), (68, 5866812), (72, 5540878), (84, 4749324), (93, 4289712), (102, 3911208), (112, 3561993), (119, 3352464), (124, 3217284), (126, 3166216), (136, 2933406), (144, 2770439), (153, 2607472), (168, 2374662), (186, 2144856), (204, 1955604), (217, 1838448), (238, 1676232), (248, 1608642), (252, 1583108), (272, 1466703), (279, 1429904), (306, 1303736), (336, 1187331), (357, 1117488), (372, 1072428), (408, 977802), (434, 919224), (476, 838116), (496, 804321), (504, 791554), (527, 757008), (558, 714952), (612, 651868), (651, 612816), (714, 558744), (744, 536214), (751, 531216), (816, 488901), (868, 459612), (952, 419058), (1008, 395777), (1054, 378504), (1071, 372496), (1116, 357476), (1224, 325934), (1302, 306408), (1428, 279372), (1488, 268107), (1502, 265608), (1581, 252336), (1736, 229806), (1904, 209529), (1953, 204272), (2108, 189252), (2142, 186248), (2232, 178738), (2253, 177072), (2448, 162967), (2604, 153204), (2856, 139686), (3004, 132804), (3162, 126168), (3472, 114903), (3689, 108144), (3906, 102136), (4216, 94626), (4284, 93124), (4464, 89369), (4506, 88536), (4743, 84112), (5208, 76602), (5257, 75888), (5712, 69843), (6008, 66402), (6324, 63084), (6759, 59024), (7378, 54072), (7812, 51068), (8432, 47313), (8568, 46562), (9012, 44268), (9486, 42056), (10416, 38301), (10514, 37944), (11067, 36048), (12016, 33201), (12648, 31542), (12767, 31248), (13518, 29512), (14756, 27036), (15624, 25534), (15771, 25296), (17136, 23281), (18024, 22134), (18972, 21028)]