138929840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{248089}}^1$

素因数の和:248109

約数の個数: 40

約数和(自身を含む): 369157920

約数和(自身を除く): 230228080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 248089, 496178, 992356, 1240445, 1736623, 1984712, 2480890, 3473246, 3969424, 4961780, 6946492, 8683115, 9923560, 13892984, 17366230, 19847120, 27785968, 34732460, 69464920, 138929840]

約数ペア:

[(1, 138929840), (2, 69464920), (4, 34732460), (5, 27785968), (7, 19847120), (8, 17366230), (10, 13892984), (14, 9923560), (16, 8683115), (20, 6946492), (28, 4961780), (35, 3969424), (40, 3473246), (56, 2480890), (70, 1984712), (80, 1736623), (112, 1240445), (140, 992356), (280, 496178), (560, 248089)]