28105785

素因数分解:

$3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2393}}^1$

素因数の和:2439

約数の個数: 40

約数和(自身を含む): 52141320

約数和(自身を除く): 24035535

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 81, 87, 135, 145, 261, 405, 435, 783, 1305, 2349, 2393, 3915, 7179, 11745, 11965, 21537, 35895, 64611, 69397, 107685, 193833, 208191, 323055, 346985, 624573, 969165, 1040955, 1873719, 3122865, 5621157, 9368595, 28105785]

約数ペア:

[(1, 28105785), (3, 9368595), (5, 5621157), (9, 3122865), (15, 1873719), (27, 1040955), (29, 969165), (45, 624573), (81, 346985), (87, 323055), (135, 208191), (145, 193833), (261, 107685), (405, 69397), (435, 64611), (783, 35895), (1305, 21537), (2349, 11965), (2393, 11745), (3915, 7179)]