20677690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{743}}^1$

素因数の和:795

約数の個数: 48

約数和(自身を含む): 42747264

約数和(自身を除く): 22069574

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 121, 230, 242, 253, 506, 605, 743, 1210, 1265, 1486, 2530, 2783, 3715, 5566, 7430, 8173, 13915, 16346, 17089, 27830, 34178, 40865, 81730, 85445, 89903, 170890, 179806, 187979, 375958, 449515, 899030, 939895, 1879790, 2067769, 4135538, 10338845, 20677690]

約数ペア:

[(1, 20677690), (2, 10338845), (5, 4135538), (10, 2067769), (11, 1879790), (22, 939895), (23, 899030), (46, 449515), (55, 375958), (110, 187979), (115, 179806), (121, 170890), (230, 89903), (242, 85445), (253, 81730), (506, 40865), (605, 34178), (743, 27830), (1210, 17089), (1265, 16346), (1486, 13915), (2530, 8173), (2783, 7430), (3715, 5566)]