28688296

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:434

約数の個数: 64

約数和(自身を含む): 66890880

約数和(自身を除く): 38202584

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 157, 182, 251, 314, 364, 502, 628, 728, 1004, 1099, 1256, 1757, 2008, 2041, 2198, 3263, 3514, 4082, 4396, 6526, 7028, 8164, 8792, 13052, 14056, 14287, 16328, 22841, 26104, 28574, 39407, 45682, 57148, 78814, 91364, 114296, 157628, 182728, 275849, 315256, 512291, 551698, 1024582, 1103396, 2049164, 2206792, 3586037, 4098328, 7172074, 14344148, 28688296]

約数ペア:

[(1, 28688296), (2, 14344148), (4, 7172074), (7, 4098328), (8, 3586037), (13, 2206792), (14, 2049164), (26, 1103396), (28, 1024582), (52, 551698), (56, 512291), (91, 315256), (104, 275849), (157, 182728), (182, 157628), (251, 114296), (314, 91364), (364, 78814), (502, 57148), (628, 45682), (728, 39407), (1004, 28574), (1099, 26104), (1256, 22841), (1757, 16328), (2008, 14287), (2041, 14056), (2198, 13052), (3263, 8792), (3514, 8164), (4082, 7028), (4396, 6526)]