70440280

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1777}}^1$

素因数の和:2779

約数の個数: 32

約数和(自身を含む): 158739840

約数和(自身を除く): 88299560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1777, 1982, 3554, 3964, 4955, 7108, 7928, 8885, 9910, 14216, 17770, 19820, 35540, 39640, 71080, 1761007, 3522014, 7044028, 8805035, 14088056, 17610070, 35220140, 70440280]

約数ペア:

[(1, 70440280), (2, 35220140), (4, 17610070), (5, 14088056), (8, 8805035), (10, 7044028), (20, 3522014), (40, 1761007), (991, 71080), (1777, 39640), (1982, 35540), (3554, 19820), (3964, 17770), (4955, 14216), (7108, 9910), (7928, 8885)]