19825720

素因数分解:

$2^3\times 5^1\times {\mathrm{577}}^1\times {\mathrm{859}}^1$

素因数の和:1447

約数の個数: 32

約数和(自身を含む): 44737200

約数和(自身を除く): 24911480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 577, 859, 1154, 1718, 2308, 2885, 3436, 4295, 4616, 5770, 6872, 8590, 11540, 17180, 23080, 34360, 495643, 991286, 1982572, 2478215, 3965144, 4956430, 9912860, 19825720]

約数ペア:

[(1, 19825720), (2, 9912860), (4, 4956430), (5, 3965144), (8, 2478215), (10, 1982572), (20, 991286), (40, 495643), (577, 34360), (859, 23080), (1154, 17180), (1718, 11540), (2308, 8590), (2885, 6872), (3436, 5770), (4295, 4616)]