199927720

素因数分解:

$2^3\times 5^1\times {\mathrm{811}}^1\times {\mathrm{6163}}^1$

素因数の和:6985

約数の個数: 32

約数和(自身を含む): 450465120

約数和(自身を除く): 250537400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 811, 1622, 3244, 4055, 6163, 6488, 8110, 12326, 16220, 24652, 30815, 32440, 49304, 61630, 123260, 246520, 4998193, 9996386, 19992772, 24990965, 39985544, 49981930, 99963860, 199927720]

約数ペア:

[(1, 199927720), (2, 99963860), (4, 49981930), (5, 39985544), (8, 24990965), (10, 19992772), (20, 9996386), (40, 4998193), (811, 246520), (1622, 123260), (3244, 61630), (4055, 49304), (6163, 32440), (6488, 30815), (8110, 24652), (12326, 16220)]