210638015

素因数分解:

$5^1\times 7^3\times {\mathrm{263}}^1\times {\mathrm{467}}^1$

素因数の和:756

約数の個数: 32

約数和(自身を含む): 296524800

約数和(自身を除く): 85886785

約数列:

[1, 5, 7, 35, 49, 245, 263, 343, 467, 1315, 1715, 1841, 2335, 3269, 9205, 12887, 16345, 22883, 64435, 90209, 114415, 122821, 160181, 451045, 614105, 800905, 859747, 4298735, 6018229, 30091145, 42127603, 210638015]

約数ペア:

[(1, 210638015), (5, 42127603), (7, 30091145), (35, 6018229), (49, 4298735), (245, 859747), (263, 800905), (343, 614105), (467, 451045), (1315, 160181), (1715, 122821), (1841, 114415), (2335, 90209), (3269, 64435), (9205, 22883), (12887, 16345)]