991039840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{884857}}^1$

素因数の和:884879

約数の個数: 48

約数和(自身を含む): 2675810592

約数和(自身を除く): 1684770752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 884857, 1769714, 3539428, 4424285, 6193999, 7078856, 8848570, 12387998, 14157712, 17697140, 24775996, 28315424, 30969995, 35394280, 49551992, 61939990, 70788560, 99103984, 123879980, 141577120, 198207968, 247759960, 495519920, 991039840]

約数ペア:

[(1, 991039840), (2, 495519920), (4, 247759960), (5, 198207968), (7, 141577120), (8, 123879980), (10, 99103984), (14, 70788560), (16, 61939990), (20, 49551992), (28, 35394280), (32, 30969995), (35, 28315424), (40, 24775996), (56, 17697140), (70, 14157712), (80, 12387998), (112, 8848570), (140, 7078856), (160, 6193999), (224, 4424285), (280, 3539428), (560, 1769714), (1120, 884857)]