257570984

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{32887}}^1$

素因数の和:32993

約数の個数: 32

約数和(自身を含む): 532785600

約数和(自身を除く): 275214616

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 89, 178, 356, 712, 979, 1958, 3916, 7832, 32887, 65774, 131548, 263096, 361757, 723514, 1447028, 2894056, 2926943, 5853886, 11707772, 23415544, 32196373, 64392746, 128785492, 257570984]

約数ペア:

[(1, 257570984), (2, 128785492), (4, 64392746), (8, 32196373), (11, 23415544), (22, 11707772), (44, 5853886), (88, 2926943), (89, 2894056), (178, 1447028), (356, 723514), (712, 361757), (979, 263096), (1958, 131548), (3916, 65774), (7832, 32887)]