78484420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{1277}}^1$

素因数の和:1732

約数の個数: 48

約数和(自身を含む): 188939520

約数和(自身を除く): 110455100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 439, 878, 1277, 1756, 2195, 2554, 3073, 4390, 5108, 6146, 6385, 8780, 8939, 12292, 12770, 15365, 17878, 25540, 30730, 35756, 44695, 61460, 89390, 178780, 560603, 1121206, 2242412, 2803015, 3924221, 5606030, 7848442, 11212060, 15696884, 19621105, 39242210, 78484420]

約数ペア:

[(1, 78484420), (2, 39242210), (4, 19621105), (5, 15696884), (7, 11212060), (10, 7848442), (14, 5606030), (20, 3924221), (28, 2803015), (35, 2242412), (70, 1121206), (140, 560603), (439, 178780), (878, 89390), (1277, 61460), (1756, 44695), (2195, 35756), (2554, 30730), (3073, 25540), (4390, 17878), (5108, 15365), (6146, 12770), (6385, 12292), (8780, 8939)]