90478160

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5741}}^1$

素因数の和:5951

約数の個数: 40

約数和(自身を含む): 211466376

約数和(自身を除く): 120988216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 5741, 7880, 11482, 15760, 22964, 28705, 45928, 57410, 91856, 114820, 229640, 459280, 1130977, 2261954, 4523908, 5654885, 9047816, 11309770, 18095632, 22619540, 45239080, 90478160]

約数ペア:

[(1, 90478160), (2, 45239080), (4, 22619540), (5, 18095632), (8, 11309770), (10, 9047816), (16, 5654885), (20, 4523908), (40, 2261954), (80, 1130977), (197, 459280), (394, 229640), (788, 114820), (985, 91856), (1576, 57410), (1970, 45928), (3152, 28705), (3940, 22964), (5741, 15760), (7880, 11482)]