28257945

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 46604160

約数和(自身を除く): 18346215

約数列:

[1, 3, 5, 15, 61, 89, 183, 267, 305, 347, 445, 915, 1041, 1335, 1735, 5205, 5429, 16287, 21167, 27145, 30883, 63501, 81435, 92649, 105835, 154415, 317505, 463245, 1883863, 5651589, 9419315, 28257945]

約数ペア:

[(1, 28257945), (3, 9419315), (5, 5651589), (15, 1883863), (61, 463245), (89, 317505), (183, 154415), (267, 105835), (305, 92649), (347, 81435), (445, 63501), (915, 30883), (1041, 27145), (1335, 21167), (1735, 16287), (5205, 5429)]