28509136

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{373}}^1$

素因数の和:679

約数の個数: 40

約数和(自身を含む): 58851144

約数和(自身を除く): 30342008

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 281, 373, 562, 746, 1124, 1492, 2248, 2984, 4496, 4777, 5968, 6341, 9554, 12682, 19108, 25364, 38216, 50728, 76432, 101456, 104813, 209626, 419252, 838504, 1677008, 1781821, 3563642, 7127284, 14254568, 28509136]

約数ペア:

[(1, 28509136), (2, 14254568), (4, 7127284), (8, 3563642), (16, 1781821), (17, 1677008), (34, 838504), (68, 419252), (136, 209626), (272, 104813), (281, 101456), (373, 76432), (562, 50728), (746, 38216), (1124, 25364), (1492, 19108), (2248, 12682), (2984, 9554), (4496, 6341), (4777, 5968)]