389971792

素因数分解:

$2^4\times 7^3\times {\mathrm{71059}}^1$

素因数の和:71088

約数の個数: 40

約数和(自身を含む): 881144000

約数和(自身を除く): 491172208

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 5488, 71059, 142118, 284236, 497413, 568472, 994826, 1136944, 1989652, 3481891, 3979304, 6963782, 7958608, 13927564, 24373237, 27855128, 48746474, 55710256, 97492948, 194985896, 389971792]

約数ペア:

[(1, 389971792), (2, 194985896), (4, 97492948), (7, 55710256), (8, 48746474), (14, 27855128), (16, 24373237), (28, 13927564), (49, 7958608), (56, 6963782), (98, 3979304), (112, 3481891), (196, 1989652), (343, 1136944), (392, 994826), (686, 568472), (784, 497413), (1372, 284236), (2744, 142118), (5488, 71059)]