28007870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{293}}^1$

素因数の和:401

約数の個数: 48

約数和(自身を含む): 56306880

約数和(自身を除く): 28299010

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 110, 121, 158, 242, 293, 395, 586, 605, 790, 869, 1210, 1465, 1738, 2930, 3223, 4345, 6446, 8690, 9559, 16115, 19118, 23147, 32230, 35453, 46294, 47795, 70906, 95590, 115735, 177265, 231470, 254617, 354530, 509234, 1273085, 2546170, 2800787, 5601574, 14003935, 28007870]

約数ペア:

[(1, 28007870), (2, 14003935), (5, 5601574), (10, 2800787), (11, 2546170), (22, 1273085), (55, 509234), (79, 354530), (110, 254617), (121, 231470), (158, 177265), (242, 115735), (293, 95590), (395, 70906), (586, 47795), (605, 46294), (790, 35453), (869, 32230), (1210, 23147), (1465, 19118), (1738, 16115), (2930, 9559), (3223, 8690), (4345, 6446)]