638525312

素因数分解:

$2^7\times {\mathrm{1993}}^1\times {\mathrm{2503}}^1$

素因数の和:4510

約数の個数: 32

約数和(自身を含む): 1273208880

約数和(自身を除く): 634683568

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 1993, 2503, 3986, 5006, 7972, 10012, 15944, 20024, 31888, 40048, 63776, 80096, 127552, 160192, 255104, 320384, 4988479, 9976958, 19953916, 39907832, 79815664, 159631328, 319262656, 638525312]

約数ペア:

[(1, 638525312), (2, 319262656), (4, 159631328), (8, 79815664), (16, 39907832), (32, 19953916), (64, 9976958), (128, 4988479), (1993, 320384), (2503, 255104), (3986, 160192), (5006, 127552), (7972, 80096), (10012, 63776), (15944, 40048), (20024, 31888)]