28333328

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:395

約数の個数: 40

約数和(自身を含む): 56346840

約数和(自身を除く): 28013512

約数列:

[1, 2, 4, 8, 16, 89, 101, 178, 197, 202, 356, 394, 404, 712, 788, 808, 1424, 1576, 1616, 3152, 8989, 17533, 17978, 19897, 35066, 35956, 39794, 70132, 71912, 79588, 140264, 143824, 159176, 280528, 318352, 1770833, 3541666, 7083332, 14166664, 28333328]

約数ペア:

[(1, 28333328), (2, 14166664), (4, 7083332), (8, 3541666), (16, 1770833), (89, 318352), (101, 280528), (178, 159176), (197, 143824), (202, 140264), (356, 79588), (394, 71912), (404, 70132), (712, 39794), (788, 35956), (808, 35066), (1424, 19897), (1576, 17978), (1616, 17533), (3152, 8989)]