644225680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1150403}}^1$

素因数の和:1150423

約数の個数: 40

約数和(自身を含む): 1711801152

約数和(自身を除く): 1067575472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1150403, 2300806, 4601612, 5752015, 8052821, 9203224, 11504030, 16105642, 18406448, 23008060, 32211284, 40264105, 46016120, 64422568, 80528210, 92032240, 128845136, 161056420, 322112840, 644225680]

約数ペア:

[(1, 644225680), (2, 322112840), (4, 161056420), (5, 128845136), (7, 92032240), (8, 80528210), (10, 64422568), (14, 46016120), (16, 40264105), (20, 32211284), (28, 23008060), (35, 18406448), (40, 16105642), (56, 11504030), (70, 9203224), (80, 8052821), (112, 5752015), (140, 4601612), (280, 2300806), (560, 1150403)]