164591720

素因数分解:

$2^3\times 5^1\times {\mathrm{887}}^1\times {\mathrm{4639}}^1$

素因数の和:5537

約数の個数: 32

約数和(自身を含む): 370828800

約数和(自身を除く): 206237080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 887, 1774, 3548, 4435, 4639, 7096, 8870, 9278, 17740, 18556, 23195, 35480, 37112, 46390, 92780, 185560, 4114793, 8229586, 16459172, 20573965, 32918344, 41147930, 82295860, 164591720]

約数ペア:

[(1, 164591720), (2, 82295860), (4, 41147930), (5, 32918344), (8, 20573965), (10, 16459172), (20, 8229586), (40, 4114793), (887, 185560), (1774, 92780), (3548, 46390), (4435, 37112), (4639, 35480), (7096, 23195), (8870, 18556), (9278, 17740)]