215099710

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{438979}}^1$

素因数の和:439000

約数の個数: 24

約数和(自身を含む): 450393480

約数和(自身を除く): 235293770

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 438979, 877958, 2194895, 3072853, 4389790, 6145706, 15364265, 21509971, 30728530, 43019942, 107549855, 215099710]

約数ペア:

[(1, 215099710), (2, 107549855), (5, 43019942), (7, 30728530), (10, 21509971), (14, 15364265), (35, 6145706), (49, 4389790), (70, 3072853), (98, 2194895), (245, 877958), (490, 438979)]