39903920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71257}}^1$

素因数の和:71277

約数の個数: 40

約数和(自身を含む): 106031904

約数和(自身を除く): 66127984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 71257, 142514, 285028, 356285, 498799, 570056, 712570, 997598, 1140112, 1425140, 1995196, 2493995, 2850280, 3990392, 4987990, 5700560, 7980784, 9975980, 19951960, 39903920]

約数ペア:

[(1, 39903920), (2, 19951960), (4, 9975980), (5, 7980784), (7, 5700560), (8, 4987990), (10, 3990392), (14, 2850280), (16, 2493995), (20, 1995196), (28, 1425140), (35, 1140112), (40, 997598), (56, 712570), (70, 570056), (80, 498799), (112, 356285), (140, 285028), (280, 142514), (560, 71257)]