1212505

素因数分解:

$5^1\times 7^4\times {\mathrm{101}}^1$

素因数の和:134

約数の個数: 20

約数和(自身を含む): 1714212

約数和(自身を除く): 501707

約数列:

[1, 5, 7, 35, 49, 101, 245, 343, 505, 707, 1715, 2401, 3535, 4949, 12005, 24745, 34643, 173215, 242501, 1212505]

約数ペア:

[(1, 1212505), (5, 242501), (7, 173215), (35, 34643), (49, 24745), (101, 12005), (245, 4949), (343, 3535), (505, 2401), (707, 1715)]