18121820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{463}}^1$

素因数の和:594

約数の個数: 48

約数和(自身を含む): 40535040

約数和(自身を除く): 22413220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 380, 412, 463, 515, 926, 1030, 1852, 1957, 2060, 2315, 3914, 4630, 7828, 8797, 9260, 9785, 17594, 19570, 35188, 39140, 43985, 47689, 87970, 95378, 175940, 190756, 238445, 476890, 906091, 953780, 1812182, 3624364, 4530455, 9060910, 18121820]

約数ペア:

[(1, 18121820), (2, 9060910), (4, 4530455), (5, 3624364), (10, 1812182), (19, 953780), (20, 906091), (38, 476890), (76, 238445), (95, 190756), (103, 175940), (190, 95378), (206, 87970), (380, 47689), (412, 43985), (463, 39140), (515, 35188), (926, 19570), (1030, 17594), (1852, 9785), (1957, 9260), (2060, 8797), (2315, 7828), (3914, 4630)]