81458900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47917}}^1$

素因数の和:47948

約数の個数: 36

約数和(自身を含む): 187167708

約数和(自身を除く): 105708808

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 1700, 47917, 95834, 191668, 239585, 479170, 814589, 958340, 1197925, 1629178, 2395850, 3258356, 4072945, 4791700, 8145890, 16291780, 20364725, 40729450, 81458900]

約数ペア:

[(1, 81458900), (2, 40729450), (4, 20364725), (5, 16291780), (10, 8145890), (17, 4791700), (20, 4072945), (25, 3258356), (34, 2395850), (50, 1629178), (68, 1197925), (85, 958340), (100, 814589), (170, 479170), (340, 239585), (425, 191668), (850, 95834), (1700, 47917)]