51251440

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{6343}}^1$

素因数の和:6457

約数の個数: 40

約数和(自身を含む): 120358368

約数和(自身を除く): 69106928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 6343, 8080, 12686, 25372, 31715, 50744, 63430, 101488, 126860, 253720, 507440, 640643, 1281286, 2562572, 3203215, 5125144, 6406430, 10250288, 12812860, 25625720, 51251440]

約数ペア:

[(1, 51251440), (2, 25625720), (4, 12812860), (5, 10250288), (8, 6406430), (10, 5125144), (16, 3203215), (20, 2562572), (40, 1281286), (80, 640643), (101, 507440), (202, 253720), (404, 126860), (505, 101488), (808, 63430), (1010, 50744), (1616, 31715), (2020, 25372), (4040, 12686), (6343, 8080)]