27942005

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 43513344

約数和(自身を除く): 15571339

約数列:

[1, 5, 7, 13, 31, 35, 49, 65, 91, 155, 217, 245, 283, 403, 455, 637, 1085, 1415, 1519, 1981, 2015, 2821, 3185, 3679, 7595, 8773, 9905, 13867, 14105, 18395, 19747, 25753, 43865, 61411, 69335, 98735, 114049, 128765, 180271, 307055, 429877, 570245, 798343, 901355, 2149385, 3991715, 5588401, 27942005]

約数ペア:

[(1, 27942005), (5, 5588401), (7, 3991715), (13, 2149385), (31, 901355), (35, 798343), (49, 570245), (65, 429877), (91, 307055), (155, 180271), (217, 128765), (245, 114049), (283, 98735), (403, 69335), (455, 61411), (637, 43865), (1085, 25753), (1415, 19747), (1519, 18395), (1981, 14105), (2015, 13867), (2821, 9905), (3185, 8773), (3679, 7595)]