28160165

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 39004416

約数和(自身を除く): 10844251

約数列:

[1, 5, 11, 23, 55, 113, 115, 197, 253, 565, 985, 1243, 1265, 2167, 2599, 4531, 6215, 10835, 12995, 22261, 22655, 28589, 49841, 111305, 142945, 244871, 249205, 512003, 1224355, 2560015, 5632033, 28160165]

約数ペア:

[(1, 28160165), (5, 5632033), (11, 2560015), (23, 1224355), (55, 512003), (113, 249205), (115, 244871), (197, 142945), (253, 111305), (565, 49841), (985, 28589), (1243, 22655), (1265, 22261), (2167, 12995), (2599, 10835), (4531, 6215)]