3998384

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1$

素因数の和:477

約数の個数: 40

約数和(自身を含む): 8541120

約数和(自身を除く): 4542736

約数列:

[1, 2, 4, 8, 13, 16, 26, 47, 52, 94, 104, 188, 208, 376, 409, 611, 752, 818, 1222, 1636, 2444, 3272, 4888, 5317, 6544, 9776, 10634, 19223, 21268, 38446, 42536, 76892, 85072, 153784, 249899, 307568, 499798, 999596, 1999192, 3998384]

約数ペア:

[(1, 3998384), (2, 1999192), (4, 999596), (8, 499798), (13, 307568), (16, 249899), (26, 153784), (47, 85072), (52, 76892), (94, 42536), (104, 38446), (188, 21268), (208, 19223), (376, 10634), (409, 9776), (611, 6544), (752, 5317), (818, 4888), (1222, 3272), (1636, 2444)]