20302415

素因数分解:

$5^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{479}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 28563840

約数和(自身を除く): 8261425

約数列:

[1, 5, 7, 35, 49, 173, 245, 479, 865, 1211, 2395, 3353, 6055, 8477, 16765, 23471, 42385, 82867, 117355, 414335, 580069, 2900345, 4060483, 20302415]

約数ペア:

[(1, 20302415), (5, 4060483), (7, 2900345), (35, 580069), (49, 414335), (173, 117355), (245, 82867), (479, 42385), (865, 23471), (1211, 16765), (2395, 8477), (3353, 6055)]