19905700

素因数分解:

$2^2\times 5^2\times {\mathrm{67}}^1\times {\mathrm{2971}}^1$

素因数の和:3052

約数の個数: 36

約数和(自身を含む): 43854832

約数和(自身を除く): 23949132

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 67, 100, 134, 268, 335, 670, 1340, 1675, 2971, 3350, 5942, 6700, 11884, 14855, 29710, 59420, 74275, 148550, 199057, 297100, 398114, 796228, 995285, 1990570, 3981140, 4976425, 9952850, 19905700]

約数ペア:

[(1, 19905700), (2, 9952850), (4, 4976425), (5, 3981140), (10, 1990570), (20, 995285), (25, 796228), (50, 398114), (67, 297100), (100, 199057), (134, 148550), (268, 74275), (335, 59420), (670, 29710), (1340, 14855), (1675, 11884), (2971, 6700), (3350, 5942)]