49709720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{28901}}^1$

素因数の和:28955

約数の個数: 32

約数和(自身を含む): 114451920

約数和(自身を除く): 64742200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 28901, 57802, 115604, 144505, 231208, 289010, 578020, 1156040, 1242743, 2485486, 4970972, 6213715, 9941944, 12427430, 24854860, 49709720]

約数ペア:

[(1, 49709720), (2, 24854860), (4, 12427430), (5, 9941944), (8, 6213715), (10, 4970972), (20, 2485486), (40, 1242743), (43, 1156040), (86, 578020), (172, 289010), (215, 231208), (344, 144505), (430, 115604), (860, 57802), (1720, 28901)]