7828660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{281}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 18950400

約数和(自身を除く): 11121740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 281, 398, 562, 796, 995, 1124, 1393, 1405, 1967, 1990, 2786, 2810, 3934, 3980, 5572, 5620, 6965, 7868, 9835, 13930, 19670, 27860, 39340, 55919, 111838, 223676, 279595, 391433, 559190, 782866, 1118380, 1565732, 1957165, 3914330, 7828660]

約数ペア:

[(1, 7828660), (2, 3914330), (4, 1957165), (5, 1565732), (7, 1118380), (10, 782866), (14, 559190), (20, 391433), (28, 279595), (35, 223676), (70, 111838), (140, 55919), (199, 39340), (281, 27860), (398, 19670), (562, 13930), (796, 9835), (995, 7868), (1124, 6965), (1393, 5620), (1405, 5572), (1967, 3980), (1990, 3934), (2786, 2810)]