1283005720

素因数分解:

$2^3\times 5^1\times {\mathrm{1549}}^1\times {\mathrm{20707}}^1$

素因数の和:22267

約数の個数: 32

約数和(自身を含む): 2888766000

約数和(自身を除く): 1605760280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1549, 3098, 6196, 7745, 12392, 15490, 20707, 30980, 41414, 61960, 82828, 103535, 165656, 207070, 414140, 828280, 32075143, 64150286, 128300572, 160375715, 256601144, 320751430, 641502860, 1283005720]

約数ペア:

[(1, 1283005720), (2, 641502860), (4, 320751430), (5, 256601144), (8, 160375715), (10, 128300572), (20, 64150286), (40, 32075143), (1549, 828280), (3098, 414140), (6196, 207070), (7745, 165656), (12392, 103535), (15490, 82828), (20707, 61960), (30980, 41414)]