201512920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{719689}}^1$

素因数の和:719707

約数の個数: 32

約数和(自身を含む): 518176800

約数和(自身を除く): 316663880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 719689, 1439378, 2878756, 3598445, 5037823, 5757512, 7196890, 10075646, 14393780, 20151292, 25189115, 28787560, 40302584, 50378230, 100756460, 201512920]

約数ペア:

[(1, 201512920), (2, 100756460), (4, 50378230), (5, 40302584), (7, 28787560), (8, 25189115), (10, 20151292), (14, 14393780), (20, 10075646), (28, 7196890), (35, 5757512), (40, 5037823), (56, 3598445), (70, 2878756), (140, 1439378), (280, 719689)]