68965390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 140152320

約数和(自身を除く): 71186930

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 109, 130, 155, 157, 218, 310, 314, 403, 545, 785, 806, 1090, 1417, 1570, 2015, 2041, 2834, 3379, 4030, 4082, 4867, 6758, 7085, 9734, 10205, 14170, 16895, 17113, 20410, 24335, 33790, 34226, 43927, 48670, 63271, 85565, 87854, 126542, 171130, 219635, 222469, 316355, 439270, 444938, 530503, 632710, 1061006, 1112345, 2224690, 2652515, 5305030, 6896539, 13793078, 34482695, 68965390]

約数ペア:

[(1, 68965390), (2, 34482695), (5, 13793078), (10, 6896539), (13, 5305030), (26, 2652515), (31, 2224690), (62, 1112345), (65, 1061006), (109, 632710), (130, 530503), (155, 444938), (157, 439270), (218, 316355), (310, 222469), (314, 219635), (403, 171130), (545, 126542), (785, 87854), (806, 85565), (1090, 63271), (1417, 48670), (1570, 43927), (2015, 34226), (2041, 33790), (2834, 24335), (3379, 20410), (4030, 17113), (4082, 16895), (4867, 14170), (6758, 10205), (7085, 9734)]