20801900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{29717}}^1$

素因数の和:29738

約数の個数: 36

約数和(自身を含む): 51590448

約数和(自身を除く): 30788548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 29717, 59434, 118868, 148585, 208019, 297170, 416038, 594340, 742925, 832076, 1040095, 1485850, 2080190, 2971700, 4160380, 5200475, 10400950, 20801900]

約数ペア:

[(1, 20801900), (2, 10400950), (4, 5200475), (5, 4160380), (7, 2971700), (10, 2080190), (14, 1485850), (20, 1040095), (25, 832076), (28, 742925), (35, 594340), (50, 416038), (70, 297170), (100, 208019), (140, 148585), (175, 118868), (350, 59434), (700, 29717)]