1657788560

素因数分解:

$2^4\times 5^1\times {\mathrm{2039}}^1\times {\mathrm{10163}}^1$

素因数の和:12215

約数の個数: 40

約数和(自身を含む): 3856628160

約数和(自身を除く): 2198839600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2039, 4078, 8156, 10163, 10195, 16312, 20326, 20390, 32624, 40652, 40780, 50815, 81304, 81560, 101630, 162608, 163120, 203260, 406520, 813040, 20722357, 41444714, 82889428, 103611785, 165778856, 207223570, 331557712, 414447140, 828894280, 1657788560]

約数ペア:

[(1, 1657788560), (2, 828894280), (4, 414447140), (5, 331557712), (8, 207223570), (10, 165778856), (16, 103611785), (20, 82889428), (40, 41444714), (80, 20722357), (2039, 813040), (4078, 406520), (8156, 203260), (10163, 163120), (10195, 162608), (16312, 101630), (20326, 81560), (20390, 81304), (32624, 50815), (40652, 40780)]