138268928

素因数分解:

$2^8\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 345354240

約数和(自身を除く): 207085312

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 32, 38, 56, 62, 64, 76, 112, 124, 128, 131, 133, 152, 217, 224, 248, 256, 262, 266, 304, 434, 448, 496, 524, 532, 589, 608, 868, 896, 917, 992, 1048, 1064, 1178, 1216, 1736, 1792, 1834, 1984, 2096, 2128, 2356, 2432, 2489, 3472, 3668, 3968, 4061, 4123, 4192, 4256, 4712, 4864, 4978, 6944, 7336, 7936, 8122, 8246, 8384, 8512, 9424, 9956, 13888, 14672, 16244, 16492, 16768, 17024, 17423, 18848, 19912, 27776, 28427, 29344, 32488, 32984, 33536, 34048, 34846, 37696, 39824, 55552, 56854, 58688, 64976, 65968, 69692, 75392, 77159, 79648, 113708, 117376, 129952, 131936, 139384, 150784, 154318, 159296, 227416, 234752, 259904, 263872, 278768, 308636, 318592, 454832, 519808, 527744, 540113, 557536, 617272, 637184, 909664, 1039616, 1055488, 1080226, 1115072, 1234544, 1819328, 2160452, 2230144, 2469088, 3638656, 4320904, 4460288, 4938176, 7277312, 8641808, 9876352, 17283616, 19752704, 34567232, 69134464, 138268928]

約数ペア:

[(1, 138268928), (2, 69134464), (4, 34567232), (7, 19752704), (8, 17283616), (14, 9876352), (16, 8641808), (19, 7277312), (28, 4938176), (31, 4460288), (32, 4320904), (38, 3638656), (56, 2469088), (62, 2230144), (64, 2160452), (76, 1819328), (112, 1234544), (124, 1115072), (128, 1080226), (131, 1055488), (133, 1039616), (152, 909664), (217, 637184), (224, 617272), (248, 557536), (256, 540113), (262, 527744), (266, 519808), (304, 454832), (434, 318592), (448, 308636), (496, 278768), (524, 263872), (532, 259904), (589, 234752), (608, 227416), (868, 159296), (896, 154318), (917, 150784), (992, 139384), (1048, 131936), (1064, 129952), (1178, 117376), (1216, 113708), (1736, 79648), (1792, 77159), (1834, 75392), (1984, 69692), (2096, 65968), (2128, 64976), (2356, 58688), (2432, 56854), (2489, 55552), (3472, 39824), (3668, 37696), (3968, 34846), (4061, 34048), (4123, 33536), (4192, 32984), (4256, 32488), (4712, 29344), (4864, 28427), (4978, 27776), (6944, 19912), (7336, 18848), (7936, 17423), (8122, 17024), (8246, 16768), (8384, 16492), (8512, 16244), (9424, 14672), (9956, 13888)]