11945720

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4091}}^1$

素因数の和:4175

約数の個数: 32

約数和(自身を含む): 27252720

約数和(自身を除く): 15307000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 4091, 8182, 16364, 20455, 32728, 40910, 81820, 163640, 298643, 597286, 1194572, 1493215, 2389144, 2986430, 5972860, 11945720]

約数ペア:

[(1, 11945720), (2, 5972860), (4, 2986430), (5, 2389144), (8, 1493215), (10, 1194572), (20, 597286), (40, 298643), (73, 163640), (146, 81820), (292, 40910), (365, 32728), (584, 20455), (730, 16364), (1460, 8182), (2920, 4091)]