20477240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73133}}^1$

素因数の和:73151

約数の個数: 32

約数和(自身を含む): 52656480

約数和(自身を除く): 32179240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 73133, 146266, 292532, 365665, 511931, 585064, 731330, 1023862, 1462660, 2047724, 2559655, 2925320, 4095448, 5119310, 10238620, 20477240]

約数ペア:

[(1, 20477240), (2, 10238620), (4, 5119310), (5, 4095448), (7, 2925320), (8, 2559655), (10, 2047724), (14, 1462660), (20, 1023862), (28, 731330), (35, 585064), (40, 511931), (56, 365665), (70, 292532), (140, 146266), (280, 73133)]