15816205

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:213

約数の個数: 32

約数和(自身を含む): 21275136

約数和(自身を除く): 5458931

約数列:

[1, 5, 17, 37, 47, 85, 107, 185, 235, 535, 629, 799, 1739, 1819, 3145, 3959, 3995, 5029, 8695, 9095, 19795, 25145, 29563, 67303, 85493, 147815, 186073, 336515, 427465, 930365, 3163241, 15816205]

約数ペア:

[(1, 15816205), (5, 3163241), (17, 930365), (37, 427465), (47, 336515), (85, 186073), (107, 147815), (185, 85493), (235, 67303), (535, 29563), (629, 25145), (799, 19795), (1739, 9095), (1819, 8695), (3145, 5029), (3959, 3995)]