256793984

素因数分解:

$2^7\times {\mathrm{401}}^1\times {\mathrm{5003}}^1$

素因数の和:5418

約数の個数: 32

約数和(自身を含む): 512960040

約数和(自身を除く): 256166056

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 401, 802, 1604, 3208, 5003, 6416, 10006, 12832, 20012, 25664, 40024, 51328, 80048, 160096, 320192, 640384, 2006203, 4012406, 8024812, 16049624, 32099248, 64198496, 128396992, 256793984]

約数ペア:

[(1, 256793984), (2, 128396992), (4, 64198496), (8, 32099248), (16, 16049624), (32, 8024812), (64, 4012406), (128, 2006203), (401, 640384), (802, 320192), (1604, 160096), (3208, 80048), (5003, 51328), (6416, 40024), (10006, 25664), (12832, 20012)]