28406265

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{601}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 47851776

約数和(自身を除く): 19445511

約数列:

[1, 3, 5, 15, 23, 69, 115, 137, 345, 411, 601, 685, 1803, 2055, 3005, 3151, 9015, 9453, 13823, 15755, 41469, 47265, 69115, 82337, 207345, 247011, 411685, 1235055, 1893751, 5681253, 9468755, 28406265]

約数ペア:

[(1, 28406265), (3, 9468755), (5, 5681253), (15, 1893751), (23, 1235055), (69, 411685), (115, 247011), (137, 207345), (345, 82337), (411, 69115), (601, 47265), (685, 41469), (1803, 15755), (2055, 13823), (3005, 9453), (3151, 9015)]