69842920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{249439}}^1$

素因数の和:249457

約数の個数: 32

約数和(自身を含む): 179596800

約数和(自身を除く): 109753880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 249439, 498878, 997756, 1247195, 1746073, 1995512, 2494390, 3492146, 4988780, 6984292, 8730365, 9977560, 13968584, 17460730, 34921460, 69842920]

約数ペア:

[(1, 69842920), (2, 34921460), (4, 17460730), (5, 13968584), (7, 9977560), (8, 8730365), (10, 6984292), (14, 4988780), (20, 3492146), (28, 2494390), (35, 1995512), (40, 1746073), (56, 1247195), (70, 997756), (140, 498878), (280, 249439)]