20181657488

素因数分解:

$2^4\times {\mathrm{337}}^1\times {\mathrm{1621}}^1\times {\mathrm{2309}}^1$

素因数の和:4275

約数の個数: 40

約数和(自身を含む): 39259179960

約数和(自身を除く): 19077522472

約数列:

[1, 2, 4, 8, 16, 337, 674, 1348, 1621, 2309, 2696, 3242, 4618, 5392, 6484, 9236, 12968, 18472, 25936, 36944, 546277, 778133, 1092554, 1556266, 2185108, 3112532, 3742889, 4370216, 6225064, 7485778, 8740432, 12450128, 14971556, 29943112, 59886224, 1261353593, 2522707186, 5045414372, 10090828744, 20181657488]

約数ペア:

[(1, 20181657488), (2, 10090828744), (4, 5045414372), (8, 2522707186), (16, 1261353593), (337, 59886224), (674, 29943112), (1348, 14971556), (1621, 12450128), (2309, 8740432), (2696, 7485778), (3242, 6225064), (4618, 4370216), (5392, 3742889), (6484, 3112532), (9236, 2185108), (12968, 1556266), (18472, 1092554), (25936, 778133), (36944, 546277)]