27928575

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 54163200

約数和(自身を除く): 26234625

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 47, 57, 75, 95, 139, 141, 171, 225, 235, 285, 417, 423, 475, 695, 705, 855, 893, 1175, 1251, 1425, 2085, 2115, 2641, 2679, 3475, 3525, 4275, 4465, 6255, 6533, 7923, 8037, 10425, 10575, 13205, 13395, 19599, 22325, 23769, 31275, 32665, 39615, 40185, 58797, 66025, 66975, 97995, 118845, 124127, 163325, 198075, 200925, 293985, 372381, 489975, 594225, 620635, 1117143, 1469925, 1861905, 3103175, 5585715, 9309525, 27928575]

約数ペア:

[(1, 27928575), (3, 9309525), (5, 5585715), (9, 3103175), (15, 1861905), (19, 1469925), (25, 1117143), (45, 620635), (47, 594225), (57, 489975), (75, 372381), (95, 293985), (139, 200925), (141, 198075), (171, 163325), (225, 124127), (235, 118845), (285, 97995), (417, 66975), (423, 66025), (475, 58797), (695, 40185), (705, 39615), (855, 32665), (893, 31275), (1175, 23769), (1251, 22325), (1425, 19599), (2085, 13395), (2115, 13205), (2641, 10575), (2679, 10425), (3475, 8037), (3525, 7923), (4275, 6533), (4465, 6255)]