28601320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65003}}^1$

素因数の和:65025

約数の個数: 32

約数和(自身を含む): 70204320

約数和(自身を除く): 41603000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65003, 130006, 260012, 325015, 520024, 650030, 715033, 1300060, 1430066, 2600120, 2860132, 3575165, 5720264, 7150330, 14300660, 28601320]

約数ペア:

[(1, 28601320), (2, 14300660), (4, 7150330), (5, 5720264), (8, 3575165), (10, 2860132), (11, 2600120), (20, 1430066), (22, 1300060), (40, 715033), (44, 650030), (55, 520024), (88, 325015), (110, 260012), (220, 130006), (440, 65003)]