256578

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:202

約数の個数: 32

約数和(自身を含む): 604800

約数和(自身を除く): 348222

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 82, 123, 149, 246, 287, 298, 447, 574, 861, 894, 1043, 1722, 2086, 3129, 6109, 6258, 12218, 18327, 36654, 42763, 85526, 128289, 256578]

約数ペア:

[(1, 256578), (2, 128289), (3, 85526), (6, 42763), (7, 36654), (14, 18327), (21, 12218), (41, 6258), (42, 6109), (82, 3129), (123, 2086), (149, 1722), (246, 1043), (287, 894), (298, 861), (447, 574)]