81223968

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{557}}^1$

素因数の和:615

約数の個数: 144

約数和(自身を含む): 256483584

約数和(自身を除く): 175259616

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 32, 42, 48, 49, 56, 62, 84, 93, 96, 98, 112, 124, 147, 168, 186, 196, 217, 224, 248, 294, 336, 372, 392, 434, 496, 557, 588, 651, 672, 744, 784, 868, 992, 1114, 1176, 1302, 1488, 1519, 1568, 1671, 1736, 2228, 2352, 2604, 2976, 3038, 3342, 3472, 3899, 4456, 4557, 4704, 5208, 6076, 6684, 6944, 7798, 8912, 9114, 10416, 11697, 12152, 13368, 15596, 17267, 17824, 18228, 20832, 23394, 24304, 26736, 27293, 31192, 34534, 36456, 46788, 48608, 51801, 53472, 54586, 62384, 69068, 72912, 81879, 93576, 103602, 109172, 120869, 124768, 138136, 145824, 163758, 187152, 207204, 218344, 241738, 276272, 327516, 362607, 374304, 414408, 436688, 483476, 552544, 655032, 725214, 828816, 846083, 873376, 966952, 1310064, 1450428, 1657632, 1692166, 1933904, 2538249, 2620128, 2900856, 3384332, 3867808, 5076498, 5801712, 6768664, 10152996, 11603424, 13537328, 20305992, 27074656, 40611984, 81223968]

約数ペア:

[(1, 81223968), (2, 40611984), (3, 27074656), (4, 20305992), (6, 13537328), (7, 11603424), (8, 10152996), (12, 6768664), (14, 5801712), (16, 5076498), (21, 3867808), (24, 3384332), (28, 2900856), (31, 2620128), (32, 2538249), (42, 1933904), (48, 1692166), (49, 1657632), (56, 1450428), (62, 1310064), (84, 966952), (93, 873376), (96, 846083), (98, 828816), (112, 725214), (124, 655032), (147, 552544), (168, 483476), (186, 436688), (196, 414408), (217, 374304), (224, 362607), (248, 327516), (294, 276272), (336, 241738), (372, 218344), (392, 207204), (434, 187152), (496, 163758), (557, 145824), (588, 138136), (651, 124768), (672, 120869), (744, 109172), (784, 103602), (868, 93576), (992, 81879), (1114, 72912), (1176, 69068), (1302, 62384), (1488, 54586), (1519, 53472), (1568, 51801), (1671, 48608), (1736, 46788), (2228, 36456), (2352, 34534), (2604, 31192), (2976, 27293), (3038, 26736), (3342, 24304), (3472, 23394), (3899, 20832), (4456, 18228), (4557, 17824), (4704, 17267), (5208, 15596), (6076, 13368), (6684, 12152), (6944, 11697), (7798, 10416), (8912, 9114)]