1999141888

素因数分解:

$2^{10}\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{887}}^1$

素因数の和:1009

約数の個数: 88

約数和(自身を含む): 4188063744

約数和(自身を除く): 2188921856

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 71, 124, 128, 142, 248, 256, 284, 496, 512, 568, 887, 992, 1024, 1136, 1774, 1984, 2201, 2272, 3548, 3968, 4402, 4544, 7096, 7936, 8804, 9088, 14192, 15872, 17608, 18176, 27497, 28384, 31744, 35216, 36352, 54994, 56768, 62977, 70432, 72704, 109988, 113536, 125954, 140864, 219976, 227072, 251908, 281728, 439952, 454144, 503816, 563456, 879904, 908288, 1007632, 1126912, 1759808, 1952287, 2015264, 2253824, 3519616, 3904574, 4030528, 7039232, 7809148, 8061056, 14078464, 15618296, 16122112, 28156928, 31236592, 32244224, 62473184, 64488448, 124946368, 249892736, 499785472, 999570944, 1999141888]

約数ペア:

[(1, 1999141888), (2, 999570944), (4, 499785472), (8, 249892736), (16, 124946368), (31, 64488448), (32, 62473184), (62, 32244224), (64, 31236592), (71, 28156928), (124, 16122112), (128, 15618296), (142, 14078464), (248, 8061056), (256, 7809148), (284, 7039232), (496, 4030528), (512, 3904574), (568, 3519616), (887, 2253824), (992, 2015264), (1024, 1952287), (1136, 1759808), (1774, 1126912), (1984, 1007632), (2201, 908288), (2272, 879904), (3548, 563456), (3968, 503816), (4402, 454144), (4544, 439952), (7096, 281728), (7936, 251908), (8804, 227072), (9088, 219976), (14192, 140864), (15872, 125954), (17608, 113536), (18176, 109988), (27497, 72704), (28384, 70432), (31744, 62977), (35216, 56768), (36352, 54994)]