179628520

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{21283}}^1$

素因数の和:21505

約数の個数: 32

約数和(自身を含む): 406098720

約数和(自身を除く): 226470200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 21283, 42566, 85132, 106415, 170264, 212830, 425660, 851320, 4490713, 8981426, 17962852, 22453565, 35925704, 44907130, 89814260, 179628520]

約数ペア:

[(1, 179628520), (2, 89814260), (4, 44907130), (5, 35925704), (8, 22453565), (10, 17962852), (20, 8981426), (40, 4490713), (211, 851320), (422, 425660), (844, 212830), (1055, 170264), (1688, 106415), (2110, 85132), (4220, 42566), (8440, 21283)]