678540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 1951488

約数和(自身を除く): 1272948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 263, 430, 516, 526, 645, 789, 860, 1052, 1290, 1315, 1578, 2580, 2630, 3156, 3945, 5260, 7890, 11309, 15780, 22618, 33927, 45236, 56545, 67854, 113090, 135708, 169635, 226180, 339270, 678540]

約数ペア:

[(1, 678540), (2, 339270), (3, 226180), (4, 169635), (5, 135708), (6, 113090), (10, 67854), (12, 56545), (15, 45236), (20, 33927), (30, 22618), (43, 15780), (60, 11309), (86, 7890), (129, 5260), (172, 3945), (215, 3156), (258, 2630), (263, 2580), (430, 1578), (516, 1315), (526, 1290), (645, 1052), (789, 860)]