20758720

素因数分解:

$2^6\times 5^1\times {\mathrm{64871}}^1$

素因数の和:64888

約数の個数: 28

約数和(自身を含む): 49432464

約数和(自身を除く): 28673744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 64871, 129742, 259484, 324355, 518968, 648710, 1037936, 1297420, 2075872, 2594840, 4151744, 5189680, 10379360, 20758720]

約数ペア:

[(1, 20758720), (2, 10379360), (4, 5189680), (5, 4151744), (8, 2594840), (10, 2075872), (16, 1297420), (20, 1037936), (32, 648710), (40, 518968), (64, 324355), (80, 259484), (160, 129742), (320, 64871)]