256998

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:252

約数の個数: 32

約数和(自身を含む): 610560

約数和(自身を除く): 353562

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 174, 203, 211, 406, 422, 609, 633, 1218, 1266, 1477, 2954, 4431, 6119, 8862, 12238, 18357, 36714, 42833, 85666, 128499, 256998]

約数ペア:

[(1, 256998), (2, 128499), (3, 85666), (6, 42833), (7, 36714), (14, 18357), (21, 12238), (29, 8862), (42, 6119), (58, 4431), (87, 2954), (174, 1477), (203, 1266), (211, 1218), (406, 633), (422, 609)]