68018920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{307}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 159667200

約数和(自身を除く): 91648280

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 191, 232, 290, 307, 382, 580, 614, 764, 955, 1160, 1228, 1528, 1535, 1910, 2456, 3070, 3820, 5539, 6140, 7640, 8903, 11078, 12280, 17806, 22156, 27695, 35612, 44312, 44515, 55390, 58637, 71224, 89030, 110780, 117274, 178060, 221560, 234548, 293185, 356120, 469096, 586370, 1172740, 1700473, 2345480, 3400946, 6801892, 8502365, 13603784, 17004730, 34009460, 68018920]

約数ペア:

[(1, 68018920), (2, 34009460), (4, 17004730), (5, 13603784), (8, 8502365), (10, 6801892), (20, 3400946), (29, 2345480), (40, 1700473), (58, 1172740), (116, 586370), (145, 469096), (191, 356120), (232, 293185), (290, 234548), (307, 221560), (382, 178060), (580, 117274), (614, 110780), (764, 89030), (955, 71224), (1160, 58637), (1228, 55390), (1528, 44515), (1535, 44312), (1910, 35612), (2456, 27695), (3070, 22156), (3820, 17806), (5539, 12280), (6140, 11078), (7640, 8903)]