289444820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1277}}^1\times {\mathrm{1619}}^1$

素因数の和:2912

約数の個数: 48

約数和(自身を含む): 695640960

約数和(自身を除く): 406196140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1277, 1619, 2554, 3238, 5108, 6385, 6476, 8095, 8939, 11333, 12770, 16190, 17878, 22666, 25540, 32380, 35756, 44695, 45332, 56665, 89390, 113330, 178780, 226660, 2067463, 4134926, 8269852, 10337315, 14472241, 20674630, 28944482, 41349260, 57888964, 72361205, 144722410, 289444820]

約数ペア:

[(1, 289444820), (2, 144722410), (4, 72361205), (5, 57888964), (7, 41349260), (10, 28944482), (14, 20674630), (20, 14472241), (28, 10337315), (35, 8269852), (70, 4134926), (140, 2067463), (1277, 226660), (1619, 178780), (2554, 113330), (3238, 89390), (5108, 56665), (6385, 45332), (6476, 44695), (8095, 35756), (8939, 32380), (11333, 25540), (12770, 22666), (16190, 17878)]