28203505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:369

約数の個数: 32

約数和(自身を含む): 39346560

約数和(自身を除く): 11143055

約数列:

[1, 5, 11, 19, 55, 95, 137, 197, 209, 685, 985, 1045, 1507, 2167, 2603, 3743, 7535, 10835, 13015, 18715, 26989, 28633, 41173, 134945, 143165, 205865, 296879, 512791, 1484395, 2563955, 5640701, 28203505]

約数ペア:

[(1, 28203505), (5, 5640701), (11, 2563955), (19, 1484395), (55, 512791), (95, 296879), (137, 205865), (197, 143165), (209, 134945), (685, 41173), (985, 28633), (1045, 26989), (1507, 18715), (2167, 13015), (2603, 10835), (3743, 7535)]