218815856

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{107}}^1$

素因数の和:203

約数の個数: 120

約数和(自身を含む): 531930240

約数和(自身を除く): 313114384

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 38, 56, 62, 76, 107, 112, 124, 133, 152, 214, 217, 248, 266, 304, 428, 434, 496, 532, 589, 749, 856, 868, 961, 1064, 1178, 1498, 1712, 1736, 1922, 2033, 2128, 2356, 2996, 3317, 3472, 3844, 4066, 4123, 4712, 5992, 6634, 6727, 7688, 8132, 8246, 9424, 11984, 13268, 13454, 14231, 15376, 16264, 16492, 18259, 23219, 26536, 26908, 28462, 32528, 32984, 36518, 46438, 53072, 53816, 56924, 63023, 65968, 73036, 92876, 102827, 107632, 113848, 126046, 127813, 146072, 185752, 205654, 227696, 252092, 255626, 292144, 371504, 411308, 441161, 504184, 511252, 719789, 822616, 882322, 1008368, 1022504, 1439578, 1645232, 1764644, 1953713, 2045008, 2879156, 3529288, 3907426, 5758312, 7058576, 7814852, 11516624, 13675991, 15629704, 27351982, 31259408, 54703964, 109407928, 218815856]

約数ペア:

[(1, 218815856), (2, 109407928), (4, 54703964), (7, 31259408), (8, 27351982), (14, 15629704), (16, 13675991), (19, 11516624), (28, 7814852), (31, 7058576), (38, 5758312), (56, 3907426), (62, 3529288), (76, 2879156), (107, 2045008), (112, 1953713), (124, 1764644), (133, 1645232), (152, 1439578), (214, 1022504), (217, 1008368), (248, 882322), (266, 822616), (304, 719789), (428, 511252), (434, 504184), (496, 441161), (532, 411308), (589, 371504), (749, 292144), (856, 255626), (868, 252092), (961, 227696), (1064, 205654), (1178, 185752), (1498, 146072), (1712, 127813), (1736, 126046), (1922, 113848), (2033, 107632), (2128, 102827), (2356, 92876), (2996, 73036), (3317, 65968), (3472, 63023), (3844, 56924), (4066, 53816), (4123, 53072), (4712, 46438), (5992, 36518), (6634, 32984), (6727, 32528), (7688, 28462), (8132, 26908), (8246, 26536), (9424, 23219), (11984, 18259), (13268, 16492), (13454, 16264), (14231, 15376)]