639713984

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109841}}^1$

素因数の和:109873

約数の個数: 56

約数和(自身を含む): 1562392608

約数和(自身を除く): 922678624

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 182, 208, 224, 364, 416, 448, 728, 832, 1456, 2912, 5824, 109841, 219682, 439364, 768887, 878728, 1427933, 1537774, 1757456, 2855866, 3075548, 3514912, 5711732, 6151096, 7029824, 9995531, 11423464, 12302192, 19991062, 22846928, 24604384, 39982124, 45693856, 49208768, 79964248, 91387712, 159928496, 319856992, 639713984]

約数ペア:

[(1, 639713984), (2, 319856992), (4, 159928496), (7, 91387712), (8, 79964248), (13, 49208768), (14, 45693856), (16, 39982124), (26, 24604384), (28, 22846928), (32, 19991062), (52, 12302192), (56, 11423464), (64, 9995531), (91, 7029824), (104, 6151096), (112, 5711732), (182, 3514912), (208, 3075548), (224, 2855866), (364, 1757456), (416, 1537774), (448, 1427933), (728, 878728), (832, 768887), (1456, 439364), (2912, 219682), (5824, 109841)]