31680408

素因数分解:

$2^3\times 3^1\times {\mathrm{661}}^1\times {\mathrm{1997}}^1$

素因数の和:2667

約数の個数: 32

約数和(自身を含む): 79360560

約数和(自身を除く): 47680152

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 661, 1322, 1983, 1997, 2644, 3966, 3994, 5288, 5991, 7932, 7988, 11982, 15864, 15976, 23964, 47928, 1320017, 2640034, 3960051, 5280068, 7920102, 10560136, 15840204, 31680408]

約数ペア:

[(1, 31680408), (2, 15840204), (3, 10560136), (4, 7920102), (6, 5280068), (8, 3960051), (12, 2640034), (24, 1320017), (661, 47928), (1322, 23964), (1983, 15976), (1997, 15864), (2644, 11982), (3966, 7988), (3994, 7932), (5288, 5991)]