381874420

素因数分解:

$2^2\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{18701}}^1$

素因数の和:19731

約数の個数: 24

約数和(自身を含む): 802764648

約数和(自身を除く): 420890228

約数列:

[1, 2, 4, 5, 10, 20, 1021, 2042, 4084, 5105, 10210, 18701, 20420, 37402, 74804, 93505, 187010, 374020, 19093721, 38187442, 76374884, 95468605, 190937210, 381874420]

約数ペア:

[(1, 381874420), (2, 190937210), (4, 95468605), (5, 76374884), (10, 38187442), (20, 19093721), (1021, 374020), (2042, 187010), (4084, 93505), (5105, 74804), (10210, 37402), (18701, 20420)]