131516020

素因数分解:

$2^2\times 5^1\times {\mathrm{761}}^1\times {\mathrm{8641}}^1$

素因数の和:9411

約数の個数: 24

約数和(自身を含む): 276578568

約数和(自身を除く): 145062548

約数列:

[1, 2, 4, 5, 10, 20, 761, 1522, 3044, 3805, 7610, 8641, 15220, 17282, 34564, 43205, 86410, 172820, 6575801, 13151602, 26303204, 32879005, 65758010, 131516020]

約数ペア:

[(1, 131516020), (2, 65758010), (4, 32879005), (5, 26303204), (10, 13151602), (20, 6575801), (761, 172820), (1522, 86410), (3044, 43205), (3805, 34564), (7610, 17282), (8641, 15220)]