201891280

素因数分解:

$2^4\times 5^1\times {\mathrm{2523641}}^1$

素因数の和:2523654

約数の個数: 20

約数和(自身を含む): 469397412

約数和(自身を除く): 267506132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2523641, 5047282, 10094564, 12618205, 20189128, 25236410, 40378256, 50472820, 100945640, 201891280]

約数ペア:

[(1, 201891280), (2, 100945640), (4, 50472820), (5, 40378256), (8, 25236410), (10, 20189128), (16, 12618205), (20, 10094564), (40, 5047282), (80, 2523641)]