28223720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{100799}}^1$

素因数の和:100817

約数の個数: 32

約数和(自身を含む): 72576000

約数和(自身を除く): 44352280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 100799, 201598, 403196, 503995, 705593, 806392, 1007990, 1411186, 2015980, 2822372, 3527965, 4031960, 5644744, 7055930, 14111860, 28223720]

約数ペア:

[(1, 28223720), (2, 14111860), (4, 7055930), (5, 5644744), (7, 4031960), (8, 3527965), (10, 2822372), (14, 2015980), (20, 1411186), (28, 1007990), (35, 806392), (40, 705593), (56, 503995), (70, 403196), (140, 201598), (280, 100799)]