68909960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{12953}}^1$

素因数の和:12990

約数の個数: 64

約数和(自身を含む): 186537600

約数和(自身を除く): 117627640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5320, 12953, 25906, 51812, 64765, 90671, 103624, 129530, 181342, 246107, 259060, 362684, 453355, 492214, 518120, 725368, 906710, 984428, 1230535, 1722749, 1813420, 1968856, 2461070, 3445498, 3626840, 4922140, 6890996, 8613745, 9844280, 13781992, 17227490, 34454980, 68909960]

約数ペア:

[(1, 68909960), (2, 34454980), (4, 17227490), (5, 13781992), (7, 9844280), (8, 8613745), (10, 6890996), (14, 4922140), (19, 3626840), (20, 3445498), (28, 2461070), (35, 1968856), (38, 1813420), (40, 1722749), (56, 1230535), (70, 984428), (76, 906710), (95, 725368), (133, 518120), (140, 492214), (152, 453355), (190, 362684), (266, 259060), (280, 246107), (380, 181342), (532, 129530), (665, 103624), (760, 90671), (1064, 64765), (1330, 51812), (2660, 25906), (5320, 12953)]