25129328

素因数分解:

$2^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2521}}^1$

素因数の和:2625

約数の個数: 40

約数和(自身を含む): 56291040

約数和(自身を除く): 31161712

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 89, 112, 178, 356, 623, 712, 1246, 1424, 2492, 2521, 4984, 5042, 9968, 10084, 17647, 20168, 35294, 40336, 70588, 141176, 224369, 282352, 448738, 897476, 1570583, 1794952, 3141166, 3589904, 6282332, 12564664, 25129328]

約数ペア:

[(1, 25129328), (2, 12564664), (4, 6282332), (7, 3589904), (8, 3141166), (14, 1794952), (16, 1570583), (28, 897476), (56, 448738), (89, 282352), (112, 224369), (178, 141176), (356, 70588), (623, 40336), (712, 35294), (1246, 20168), (1424, 17647), (2492, 10084), (2521, 9968), (4984, 5042)]