20731760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37021}}^1$

素因数の和:37041

約数の個数: 40

約数和(自身を含む): 55088736

約数和(自身を除く): 34356976

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37021, 74042, 148084, 185105, 259147, 296168, 370210, 518294, 592336, 740420, 1036588, 1295735, 1480840, 2073176, 2591470, 2961680, 4146352, 5182940, 10365880, 20731760]

約数ペア:

[(1, 20731760), (2, 10365880), (4, 5182940), (5, 4146352), (7, 2961680), (8, 2591470), (10, 2073176), (14, 1480840), (16, 1295735), (20, 1036588), (28, 740420), (35, 592336), (40, 518294), (56, 370210), (70, 296168), (80, 259147), (112, 185105), (140, 148084), (280, 74042), (560, 37021)]