1990015488

素因数分解:

$2^9\times 3^2\times {\mathrm{31}}^1\times {\mathrm{13931}}^1$

素因数の和:13986

約数の個数: 120

約数和(自身を含む): 5929013376

約数和(自身を除く): 3938997888

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 64, 72, 93, 96, 124, 128, 144, 186, 192, 248, 256, 279, 288, 372, 384, 496, 512, 558, 576, 744, 768, 992, 1116, 1152, 1488, 1536, 1984, 2232, 2304, 2976, 3968, 4464, 4608, 5952, 7936, 8928, 11904, 13931, 15872, 17856, 23808, 27862, 35712, 41793, 47616, 55724, 71424, 83586, 111448, 125379, 142848, 167172, 222896, 250758, 334344, 431861, 445792, 501516, 668688, 863722, 891584, 1003032, 1295583, 1337376, 1727444, 1783168, 2006064, 2591166, 2674752, 3454888, 3566336, 3886749, 4012128, 5182332, 5349504, 6909776, 7132672, 7773498, 8024256, 10364664, 10699008, 13819552, 15546996, 16048512, 20729328, 21398016, 27639104, 31093992, 32097024, 41458656, 55278208, 62187984, 64194048, 82917312, 110556416, 124375968, 165834624, 221112832, 248751936, 331669248, 497503872, 663338496, 995007744, 1990015488]

約数ペア:

[(1, 1990015488), (2, 995007744), (3, 663338496), (4, 497503872), (6, 331669248), (8, 248751936), (9, 221112832), (12, 165834624), (16, 124375968), (18, 110556416), (24, 82917312), (31, 64194048), (32, 62187984), (36, 55278208), (48, 41458656), (62, 32097024), (64, 31093992), (72, 27639104), (93, 21398016), (96, 20729328), (124, 16048512), (128, 15546996), (144, 13819552), (186, 10699008), (192, 10364664), (248, 8024256), (256, 7773498), (279, 7132672), (288, 6909776), (372, 5349504), (384, 5182332), (496, 4012128), (512, 3886749), (558, 3566336), (576, 3454888), (744, 2674752), (768, 2591166), (992, 2006064), (1116, 1783168), (1152, 1727444), (1488, 1337376), (1536, 1295583), (1984, 1003032), (2232, 891584), (2304, 863722), (2976, 668688), (3968, 501516), (4464, 445792), (4608, 431861), (5952, 334344), (7936, 250758), (8928, 222896), (11904, 167172), (13931, 142848), (15872, 125379), (17856, 111448), (23808, 83586), (27862, 71424), (35712, 55724), (41793, 47616)]