129167384

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{1999}}^1$

素因数の和:2243

約数の個数: 32

約数和(自身を含む): 249480000

約数和(自身を除く): 120312616

約数列:

[1, 2, 4, 8, 41, 82, 164, 197, 328, 394, 788, 1576, 1999, 3998, 7996, 8077, 15992, 16154, 32308, 64616, 81959, 163918, 327836, 393803, 655672, 787606, 1575212, 3150424, 16145923, 32291846, 64583692, 129167384]

約数ペア:

[(1, 129167384), (2, 64583692), (4, 32291846), (8, 16145923), (41, 3150424), (82, 1575212), (164, 787606), (197, 655672), (328, 393803), (394, 327836), (788, 163918), (1576, 81959), (1999, 64616), (3998, 32308), (7996, 16154), (8077, 15992)]