2678840

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^1\times {\mathrm{347}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 6076080

約数和(自身を除く): 3397240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 347, 386, 694, 772, 965, 1388, 1544, 1735, 1930, 2776, 3470, 3860, 6940, 7720, 13880, 66971, 133942, 267884, 334855, 535768, 669710, 1339420, 2678840]

約数ペア:

[(1, 2678840), (2, 1339420), (4, 669710), (5, 535768), (8, 334855), (10, 267884), (20, 133942), (40, 66971), (193, 13880), (347, 7720), (386, 6940), (694, 3860), (772, 3470), (965, 2776), (1388, 1930), (1544, 1735)]