78926820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{187921}}^1$

素因数の和:187940

約数の個数: 48

約数和(自身を含む): 252567168

約数和(自身を除く): 173640348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 187921, 375842, 563763, 751684, 939605, 1127526, 1315447, 1879210, 2255052, 2630894, 2818815, 3758420, 3946341, 5261788, 5637630, 6577235, 7892682, 11275260, 13154470, 15785364, 19731705, 26308940, 39463410, 78926820]

約数ペア:

[(1, 78926820), (2, 39463410), (3, 26308940), (4, 19731705), (5, 15785364), (6, 13154470), (7, 11275260), (10, 7892682), (12, 6577235), (14, 5637630), (15, 5261788), (20, 3946341), (21, 3758420), (28, 2818815), (30, 2630894), (35, 2255052), (42, 1879210), (60, 1315447), (70, 1127526), (84, 939605), (105, 751684), (140, 563763), (210, 375842), (420, 187921)]