68564720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{17491}}^1$

素因数の和:17518

約数の個数: 60

約数和(自身を含む): 185450184

約数和(自身を除く): 116885464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 17491, 34982, 69964, 87455, 122437, 139928, 174910, 244874, 279856, 349820, 489748, 612185, 699640, 857059, 979496, 1224370, 1399280, 1714118, 1958992, 2448740, 3428236, 4285295, 4897480, 6856472, 8570590, 9794960, 13712944, 17141180, 34282360, 68564720]

約数ペア:

[(1, 68564720), (2, 34282360), (4, 17141180), (5, 13712944), (7, 9794960), (8, 8570590), (10, 6856472), (14, 4897480), (16, 4285295), (20, 3428236), (28, 2448740), (35, 1958992), (40, 1714118), (49, 1399280), (56, 1224370), (70, 979496), (80, 857059), (98, 699640), (112, 612185), (140, 489748), (196, 349820), (245, 279856), (280, 244874), (392, 174910), (490, 139928), (560, 122437), (784, 87455), (980, 69964), (1960, 34982), (3920, 17491)]