25380460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{911}}^1$

素因数の和:1126

約数の個数: 48

約数和(自身を含む): 61286400

約数和(自身を除く): 35905940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 911, 995, 1393, 1822, 1990, 2786, 3644, 3980, 4555, 5572, 6377, 6965, 9110, 12754, 13930, 18220, 25508, 27860, 31885, 63770, 127540, 181289, 362578, 725156, 906445, 1269023, 1812890, 2538046, 3625780, 5076092, 6345115, 12690230, 25380460]

約数ペア:

[(1, 25380460), (2, 12690230), (4, 6345115), (5, 5076092), (7, 3625780), (10, 2538046), (14, 1812890), (20, 1269023), (28, 906445), (35, 725156), (70, 362578), (140, 181289), (199, 127540), (398, 63770), (796, 31885), (911, 27860), (995, 25508), (1393, 18220), (1822, 13930), (1990, 12754), (2786, 9110), (3644, 6965), (3980, 6377), (4555, 5572)]