679980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1619}}^1$

素因数の和:1638

約数の個数: 48

約数和(自身を含む): 2177280

約数和(自身を除く): 1497300

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, 1619, 3238, 4857, 6476, 8095, 9714, 11333, 16190, 19428, 22666, 24285, 32380, 33999, 45332, 48570, 56665, 67998, 97140, 113330, 135996, 169995, 226660, 339990, 679980]

約数ペア:

[(1, 679980), (2, 339990), (3, 226660), (4, 169995), (5, 135996), (6, 113330), (7, 97140), (10, 67998), (12, 56665), (14, 48570), (15, 45332), (20, 33999), (21, 32380), (28, 24285), (30, 22666), (35, 19428), (42, 16190), (60, 11333), (70, 9714), (84, 8095), (105, 6476), (140, 4857), (210, 3238), (420, 1619)]