263457520

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{31973}}^1$

素因数の和:32089

約数の個数: 40

約数和(自身を含む): 618505056

約数和(自身を除く): 355047536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 31973, 63946, 127892, 159865, 255784, 319730, 511568, 639460, 1278920, 2557840, 3293219, 6586438, 13172876, 16466095, 26345752, 32932190, 52691504, 65864380, 131728760, 263457520]

約数ペア:

[(1, 263457520), (2, 131728760), (4, 65864380), (5, 52691504), (8, 32932190), (10, 26345752), (16, 16466095), (20, 13172876), (40, 6586438), (80, 3293219), (103, 2557840), (206, 1278920), (412, 639460), (515, 511568), (824, 319730), (1030, 255784), (1648, 159865), (2060, 127892), (4120, 63946), (8240, 31973)]