140880560

素因数分解:

$2^4\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1777}}^1$

素因数の和:2781

約数の個数: 40

約数和(自身を含む): 328062336

約数和(自身を除く): 187181776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 991, 1777, 1982, 3554, 3964, 4955, 7108, 7928, 8885, 9910, 14216, 15856, 17770, 19820, 28432, 35540, 39640, 71080, 79280, 142160, 1761007, 3522014, 7044028, 8805035, 14088056, 17610070, 28176112, 35220140, 70440280, 140880560]

約数ペア:

[(1, 140880560), (2, 70440280), (4, 35220140), (5, 28176112), (8, 17610070), (10, 14088056), (16, 8805035), (20, 7044028), (40, 3522014), (80, 1761007), (991, 142160), (1777, 79280), (1982, 71080), (3554, 39640), (3964, 35540), (4955, 28432), (7108, 19820), (7928, 17770), (8885, 15856), (9910, 14216)]