19798720

素因数分解:

$2^6\times 5^1\times {\mathrm{61871}}^1$

素因数の和:61888

約数の個数: 28

約数和(自身を含む): 47146464

約数和(自身を除く): 27347744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 61871, 123742, 247484, 309355, 494968, 618710, 989936, 1237420, 1979872, 2474840, 3959744, 4949680, 9899360, 19798720]

約数ペア:

[(1, 19798720), (2, 9899360), (4, 4949680), (5, 3959744), (8, 2474840), (10, 1979872), (16, 1237420), (20, 989936), (32, 618710), (40, 494968), (64, 309355), (80, 247484), (160, 123742), (320, 61871)]