90291568

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:649

約数の個数: 40

約数和(自身を含む): 178448400

約数和(自身を除く): 88156832

約数列:

[1, 2, 4, 8, 16, 89, 163, 178, 326, 356, 389, 652, 712, 778, 1304, 1424, 1556, 2608, 3112, 6224, 14507, 29014, 34621, 58028, 63407, 69242, 116056, 126814, 138484, 232112, 253628, 276968, 507256, 553936, 1014512, 5643223, 11286446, 22572892, 45145784, 90291568]

約数ペア:

[(1, 90291568), (2, 45145784), (4, 22572892), (8, 11286446), (16, 5643223), (89, 1014512), (163, 553936), (178, 507256), (326, 276968), (356, 253628), (389, 232112), (652, 138484), (712, 126814), (778, 116056), (1304, 69242), (1424, 63407), (1556, 58028), (2608, 34621), (3112, 29014), (6224, 14507)]