256289454

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{128273}}^1$

素因数の和:128321

約数の個数: 32

約数和(自身を含む): 584929440

約数和(自身を除く): 328639986

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 128273, 256546, 384819, 769638, 1154457, 2308914, 3463371, 4746101, 6926742, 9492202, 14238303, 28476606, 42714909, 85429818, 128144727, 256289454]

約数ペア:

[(1, 256289454), (2, 128144727), (3, 85429818), (6, 42714909), (9, 28476606), (18, 14238303), (27, 9492202), (37, 6926742), (54, 4746101), (74, 3463371), (111, 2308914), (222, 1154457), (333, 769638), (666, 384819), (999, 256546), (1998, 128273)]