68778820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{293}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 160943832

約数和(自身を除く): 92165012

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 121, 194, 220, 242, 293, 388, 484, 485, 586, 605, 970, 1067, 1172, 1210, 1465, 1940, 2134, 2420, 2930, 3223, 4268, 5335, 5860, 6446, 10670, 11737, 12892, 16115, 21340, 23474, 28421, 32230, 35453, 46948, 56842, 58685, 64460, 70906, 113684, 117370, 141812, 142105, 177265, 234740, 284210, 312631, 354530, 568420, 625262, 709060, 1250524, 1563155, 3126310, 3438941, 6252620, 6877882, 13755764, 17194705, 34389410, 68778820]

約数ペア:

[(1, 68778820), (2, 34389410), (4, 17194705), (5, 13755764), (10, 6877882), (11, 6252620), (20, 3438941), (22, 3126310), (44, 1563155), (55, 1250524), (97, 709060), (110, 625262), (121, 568420), (194, 354530), (220, 312631), (242, 284210), (293, 234740), (388, 177265), (484, 142105), (485, 141812), (586, 117370), (605, 113684), (970, 70906), (1067, 64460), (1172, 58685), (1210, 56842), (1465, 46948), (1940, 35453), (2134, 32230), (2420, 28421), (2930, 23474), (3223, 21340), (4268, 16115), (5335, 12892), (5860, 11737), (6446, 10670)]