26780840

素因数分解:

$2^3\times 5^1\times {\mathrm{607}}^1\times {\mathrm{1103}}^1$

素因数の和:1721

約数の個数: 32

約数和(自身を含む): 60410880

約数和(自身を除く): 33630040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 607, 1103, 1214, 2206, 2428, 3035, 4412, 4856, 5515, 6070, 8824, 11030, 12140, 22060, 24280, 44120, 669521, 1339042, 2678084, 3347605, 5356168, 6695210, 13390420, 26780840]

約数ペア:

[(1, 26780840), (2, 13390420), (4, 6695210), (5, 5356168), (8, 3347605), (10, 2678084), (20, 1339042), (40, 669521), (607, 44120), (1103, 24280), (1214, 22060), (2206, 12140), (2428, 11030), (3035, 8824), (4412, 6070), (4856, 5515)]