20153210

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{3739}}^1$

素因数の和:3771

約数の個数: 48

約数和(自身を含む): 46046880

約数和(自身を除く): 25893670

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 385, 490, 539, 770, 1078, 2695, 3739, 5390, 7478, 18695, 26173, 37390, 41129, 52346, 82258, 130865, 183211, 205645, 261730, 287903, 366422, 411290, 575806, 916055, 1439515, 1832110, 2015321, 2879030, 4030642, 10076605, 20153210]

約数ペア:

[(1, 20153210), (2, 10076605), (5, 4030642), (7, 2879030), (10, 2015321), (11, 1832110), (14, 1439515), (22, 916055), (35, 575806), (49, 411290), (55, 366422), (70, 287903), (77, 261730), (98, 205645), (110, 183211), (154, 130865), (245, 82258), (385, 52346), (490, 41129), (539, 37390), (770, 26173), (1078, 18695), (2695, 7478), (3739, 5390)]