82747880

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10501}}^1$

素因数の和:10709

約数の個数: 32

約数和(自身を含む): 187145640

約数和(自身を除く): 104397760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 10501, 21002, 42004, 52505, 84008, 105010, 210020, 420040, 2068697, 4137394, 8274788, 10343485, 16549576, 20686970, 41373940, 82747880]

約数ペア:

[(1, 82747880), (2, 41373940), (4, 20686970), (5, 16549576), (8, 10343485), (10, 8274788), (20, 4137394), (40, 2068697), (197, 420040), (394, 210020), (788, 105010), (985, 84008), (1576, 52505), (1970, 42004), (3940, 21002), (7880, 10501)]