256428

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{419}}^1$

素因数の和:446

約数の個数: 36

約数和(自身を含む): 687960

約数和(自身を除く): 431532

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 306, 419, 612, 838, 1257, 1676, 2514, 3771, 5028, 7123, 7542, 14246, 15084, 21369, 28492, 42738, 64107, 85476, 128214, 256428]

約数ペア:

[(1, 256428), (2, 128214), (3, 85476), (4, 64107), (6, 42738), (9, 28492), (12, 21369), (17, 15084), (18, 14246), (34, 7542), (36, 7123), (51, 5028), (68, 3771), (102, 2514), (153, 1676), (204, 1257), (306, 838), (419, 612)]