1999837952

素因数分解:

$2^8\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1741}}^1$

素因数の和:2405

約数の個数: 72

約数和(自身を含む): 4571872032

約数和(自身を除く): 2572034080

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 641, 896, 1282, 1741, 1792, 2564, 3482, 4487, 5128, 6964, 8974, 10256, 12187, 13928, 17948, 20512, 24374, 27856, 35896, 41024, 48748, 55712, 71792, 82048, 97496, 111424, 143584, 164096, 194992, 222848, 287168, 389984, 445696, 574336, 779968, 1115981, 1148672, 1559936, 2231962, 3119872, 4463924, 7811867, 8927848, 15623734, 17855696, 31247468, 35711392, 62494936, 71422784, 124989872, 142845568, 249979744, 285691136, 499959488, 999918976, 1999837952]

約数ペア:

[(1, 1999837952), (2, 999918976), (4, 499959488), (7, 285691136), (8, 249979744), (14, 142845568), (16, 124989872), (28, 71422784), (32, 62494936), (56, 35711392), (64, 31247468), (112, 17855696), (128, 15623734), (224, 8927848), (256, 7811867), (448, 4463924), (641, 3119872), (896, 2231962), (1282, 1559936), (1741, 1148672), (1792, 1115981), (2564, 779968), (3482, 574336), (4487, 445696), (5128, 389984), (6964, 287168), (8974, 222848), (10256, 194992), (12187, 164096), (13928, 143584), (17948, 111424), (20512, 97496), (24374, 82048), (27856, 71792), (35896, 55712), (41024, 48748)]