86849980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4463}}^1$

素因数の和:4618

約数の個数: 48

約数和(自身を含む): 209986560

約数和(自身を除く): 123136580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4463, 4865, 8926, 9730, 17852, 19460, 22315, 31241, 44630, 62482, 89260, 124964, 156205, 312410, 620357, 624820, 1240714, 2481428, 3101785, 4342499, 6203570, 8684998, 12407140, 17369996, 21712495, 43424990, 86849980]

約数ペア:

[(1, 86849980), (2, 43424990), (4, 21712495), (5, 17369996), (7, 12407140), (10, 8684998), (14, 6203570), (20, 4342499), (28, 3101785), (35, 2481428), (70, 1240714), (139, 624820), (140, 620357), (278, 312410), (556, 156205), (695, 124964), (973, 89260), (1390, 62482), (1946, 44630), (2780, 31241), (3892, 22315), (4463, 19460), (4865, 17852), (8926, 9730)]