90842920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{324439}}^1$

素因数の和:324457

約数の個数: 32

約数和(自身を含む): 233596800

約数和(自身を除く): 142753880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 324439, 648878, 1297756, 1622195, 2271073, 2595512, 3244390, 4542146, 6488780, 9084292, 11355365, 12977560, 18168584, 22710730, 45421460, 90842920]

約数ペア:

[(1, 90842920), (2, 45421460), (4, 22710730), (5, 18168584), (7, 12977560), (8, 11355365), (10, 9084292), (14, 6488780), (20, 4542146), (28, 3244390), (35, 2595512), (40, 2271073), (56, 1622195), (70, 1297756), (140, 648878), (280, 324439)]