667856

素因数分解:

$2^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:171

約数の個数: 40

約数和(自身を含む): 1517760

約数和(自身を除く): 849904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 67, 89, 112, 134, 178, 268, 356, 469, 536, 623, 712, 938, 1072, 1246, 1424, 1876, 2492, 3752, 4984, 5963, 7504, 9968, 11926, 23852, 41741, 47704, 83482, 95408, 166964, 333928, 667856]

約数ペア:

[(1, 667856), (2, 333928), (4, 166964), (7, 95408), (8, 83482), (14, 47704), (16, 41741), (28, 23852), (56, 11926), (67, 9968), (89, 7504), (112, 5963), (134, 4984), (178, 3752), (268, 2492), (356, 1876), (469, 1424), (536, 1246), (623, 1072), (712, 938)]