138857432

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79987}}^1$

素因数の和:80031

約数の個数: 32

約数和(自身を含む): 307153920

約数和(自身を除く): 168296488

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 79987, 159974, 319948, 559909, 639896, 1119818, 2239636, 2479597, 4479272, 4959194, 9918388, 17357179, 19836776, 34714358, 69428716, 138857432]

約数ペア:

[(1, 138857432), (2, 69428716), (4, 34714358), (7, 19836776), (8, 17357179), (14, 9918388), (28, 4959194), (31, 4479272), (56, 2479597), (62, 2239636), (124, 1119818), (217, 639896), (248, 559909), (434, 319948), (868, 159974), (1736, 79987)]