245178

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:318

約数の個数: 24

約数和(自身を含む): 543348

約数和(自身を除く): 298170

約数列:

[1, 2, 3, 6, 9, 18, 53, 106, 159, 257, 318, 477, 514, 771, 954, 1542, 2313, 4626, 13621, 27242, 40863, 81726, 122589, 245178]

約数ペア:

[(1, 245178), (2, 122589), (3, 81726), (6, 40863), (9, 27242), (18, 13621), (53, 4626), (106, 2313), (159, 1542), (257, 954), (318, 771), (477, 514)]