28278712

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1583}}^1$

素因数の和:1636

約数の個数: 64

約数和(自身を含む): 68428800

約数和(自身を除く): 40150088

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 29, 44, 56, 58, 77, 88, 116, 154, 203, 232, 308, 319, 406, 616, 638, 812, 1276, 1583, 1624, 2233, 2552, 3166, 4466, 6332, 8932, 11081, 12664, 17413, 17864, 22162, 34826, 44324, 45907, 69652, 88648, 91814, 121891, 139304, 183628, 243782, 321349, 367256, 487564, 504977, 642698, 975128, 1009954, 1285396, 2019908, 2570792, 3534839, 4039816, 7069678, 14139356, 28278712]

約数ペア:

[(1, 28278712), (2, 14139356), (4, 7069678), (7, 4039816), (8, 3534839), (11, 2570792), (14, 2019908), (22, 1285396), (28, 1009954), (29, 975128), (44, 642698), (56, 504977), (58, 487564), (77, 367256), (88, 321349), (116, 243782), (154, 183628), (203, 139304), (232, 121891), (308, 91814), (319, 88648), (406, 69652), (616, 45907), (638, 44324), (812, 34826), (1276, 22162), (1583, 17864), (1624, 17413), (2233, 12664), (2552, 11081), (3166, 8932), (4466, 6332)]