20807727825

素因数分解:

$3^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{137}}^1\times {\mathrm{19661}}^1$

素因数の和:19914

約数の個数: 48

約数和(自身を含む): 34991438976

約数和(自身を除く): 14183711151

約数列:

[1, 3, 5, 15, 25, 75, 103, 137, 309, 411, 515, 685, 1545, 2055, 2575, 3425, 7725, 10275, 14111, 19661, 42333, 58983, 70555, 98305, 211665, 294915, 352775, 491525, 1058325, 1474575, 2025083, 2693557, 6075249, 8080671, 10125415, 13467785, 30376245, 40403355, 50627075, 67338925, 151881225, 202016775, 277436371, 832309113, 1387181855, 4161545565, 6935909275, 20807727825]

約数ペア:

[(1, 20807727825), (3, 6935909275), (5, 4161545565), (15, 1387181855), (25, 832309113), (75, 277436371), (103, 202016775), (137, 151881225), (309, 67338925), (411, 50627075), (515, 40403355), (685, 30376245), (1545, 13467785), (2055, 10125415), (2575, 8080671), (3425, 6075249), (7725, 2693557), (10275, 2025083), (14111, 1474575), (19661, 1058325), (42333, 491525), (58983, 352775), (70555, 294915), (98305, 211665)]