79090280

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{4027}}^1$

素因数の和:4529

約数の個数: 32

約数和(自身を含む): 178359840

約数和(自身を除く): 99269560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4027, 4910, 8054, 9820, 16108, 19640, 20135, 32216, 40270, 80540, 161080, 1977257, 3954514, 7909028, 9886285, 15818056, 19772570, 39545140, 79090280]

約数ペア:

[(1, 79090280), (2, 39545140), (4, 19772570), (5, 15818056), (8, 9886285), (10, 7909028), (20, 3954514), (40, 1977257), (491, 161080), (982, 80540), (1964, 40270), (2455, 32216), (3928, 20135), (4027, 19640), (4910, 16108), (8054, 9820)]