42278440

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{4211}}^1$

素因数の和:4473

約数の個数: 32

約数和(自身を含む): 95528160

約数和(自身を除く): 53249720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 4211, 5020, 8422, 10040, 16844, 21055, 33688, 42110, 84220, 168440, 1056961, 2113922, 4227844, 5284805, 8455688, 10569610, 21139220, 42278440]

約数ペア:

[(1, 42278440), (2, 21139220), (4, 10569610), (5, 8455688), (8, 5284805), (10, 4227844), (20, 2113922), (40, 1056961), (251, 168440), (502, 84220), (1004, 42110), (1255, 33688), (2008, 21055), (2510, 16844), (4211, 10040), (5020, 8422)]