28786275

素因数分解:

$3^2\times 5^2\times 7^3\times {\mathrm{373}}^1$

素因数の和:410

約数の個数: 72

約数和(自身を含む): 60288800

約数和(自身を除く): 31502525

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 75, 105, 147, 175, 225, 245, 315, 343, 373, 441, 525, 735, 1029, 1119, 1225, 1575, 1715, 1865, 2205, 2611, 3087, 3357, 3675, 5145, 5595, 7833, 8575, 9325, 11025, 13055, 15435, 16785, 18277, 23499, 25725, 27975, 39165, 54831, 65275, 77175, 83925, 91385, 117495, 127939, 164493, 195825, 274155, 383817, 456925, 587475, 639695, 822465, 1151451, 1370775, 1919085, 3198475, 4112325, 5757255, 9595425, 28786275]

約数ペア:

[(1, 28786275), (3, 9595425), (5, 5757255), (7, 4112325), (9, 3198475), (15, 1919085), (21, 1370775), (25, 1151451), (35, 822465), (45, 639695), (49, 587475), (63, 456925), (75, 383817), (105, 274155), (147, 195825), (175, 164493), (225, 127939), (245, 117495), (315, 91385), (343, 83925), (373, 77175), (441, 65275), (525, 54831), (735, 39165), (1029, 27975), (1119, 25725), (1225, 23499), (1575, 18277), (1715, 16785), (1865, 15435), (2205, 13055), (2611, 11025), (3087, 9325), (3357, 8575), (3675, 7833), (5145, 5595)]