1320749920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{168463}}^1$

素因数の和:168492

約数の個数: 72

約数和(自身を含む): 3629725344

約数和(自身を除く): 2308975424

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 168463, 336926, 673852, 842315, 1179241, 1347704, 1684630, 2358482, 2695408, 3369260, 4716964, 5390816, 5896205, 6738520, 8254687, 9433928, 11792410, 13477040, 16509374, 18867856, 23584820, 26954080, 33018748, 37735712, 41273435, 47169640, 66037496, 82546870, 94339280, 132074992, 165093740, 188678560, 264149984, 330187480, 660374960, 1320749920]

約数ペア:

[(1, 1320749920), (2, 660374960), (4, 330187480), (5, 264149984), (7, 188678560), (8, 165093740), (10, 132074992), (14, 94339280), (16, 82546870), (20, 66037496), (28, 47169640), (32, 41273435), (35, 37735712), (40, 33018748), (49, 26954080), (56, 23584820), (70, 18867856), (80, 16509374), (98, 13477040), (112, 11792410), (140, 9433928), (160, 8254687), (196, 6738520), (224, 5896205), (245, 5390816), (280, 4716964), (392, 3369260), (490, 2695408), (560, 2358482), (784, 1684630), (980, 1347704), (1120, 1179241), (1568, 842315), (1960, 673852), (3920, 336926), (7840, 168463)]