129171560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{461327}}^1$

素因数の和:461345

約数の個数: 32

約数和(自身を含む): 332156160

約数和(自身を除く): 202984600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 461327, 922654, 1845308, 2306635, 3229289, 3690616, 4613270, 6458578, 9226540, 12917156, 16146445, 18453080, 25834312, 32292890, 64585780, 129171560]

約数ペア:

[(1, 129171560), (2, 64585780), (4, 32292890), (5, 25834312), (7, 18453080), (8, 16146445), (10, 12917156), (14, 9226540), (20, 6458578), (28, 4613270), (35, 3690616), (40, 3229289), (56, 2306635), (70, 1845308), (140, 922654), (280, 461327)]