2021801720

素因数分解:

$2^3\times 5^1\times {\mathrm{50545043}}^1$

素因数の和:50545054

約数の個数: 16

約数和(自身を含む): 4549053960

約数和(自身を除く): 2527252240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 50545043, 101090086, 202180172, 252725215, 404360344, 505450430, 1010900860, 2021801720]

約数ペア:

[(1, 2021801720), (2, 1010900860), (4, 505450430), (5, 404360344), (8, 252725215), (10, 202180172), (20, 101090086), (40, 50545043)]