71497456

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{479}}^1\times {\mathrm{491}}^1$

素因数の和:997

約数の個数: 40

約数和(自身を含む): 146419200

約数和(自身を除く): 74921744

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 479, 491, 958, 982, 1916, 1964, 3832, 3928, 7664, 7856, 9101, 9329, 18202, 18658, 36404, 37316, 72808, 74632, 145616, 149264, 235189, 470378, 940756, 1881512, 3763024, 4468591, 8937182, 17874364, 35748728, 71497456]

約数ペア:

[(1, 71497456), (2, 35748728), (4, 17874364), (8, 8937182), (16, 4468591), (19, 3763024), (38, 1881512), (76, 940756), (152, 470378), (304, 235189), (479, 149264), (491, 145616), (958, 74632), (982, 72808), (1916, 37316), (1964, 36404), (3832, 18658), (3928, 18202), (7664, 9329), (7856, 9101)]