139385680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{248903}}^1$

素因数の和:248923

約数の個数: 40

約数和(自身を含む): 370369152

約数和(自身を除く): 230983472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 248903, 497806, 995612, 1244515, 1742321, 1991224, 2489030, 3484642, 3982448, 4978060, 6969284, 8711605, 9956120, 13938568, 17423210, 19912240, 27877136, 34846420, 69692840, 139385680]

約数ペア:

[(1, 139385680), (2, 69692840), (4, 34846420), (5, 27877136), (7, 19912240), (8, 17423210), (10, 13938568), (14, 9956120), (16, 8711605), (20, 6969284), (28, 4978060), (35, 3982448), (40, 3484642), (56, 2489030), (70, 1991224), (80, 1742321), (112, 1244515), (140, 995612), (280, 497806), (560, 248903)]