28530328

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{421}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 55146960

約数和(自身を除く): 26616632

約数列:

[1, 2, 4, 8, 43, 86, 172, 197, 344, 394, 421, 788, 842, 1576, 1684, 3368, 8471, 16942, 18103, 33884, 36206, 67768, 72412, 82937, 144824, 165874, 331748, 663496, 3566291, 7132582, 14265164, 28530328]

約数ペア:

[(1, 28530328), (2, 14265164), (4, 7132582), (8, 3566291), (43, 663496), (86, 331748), (172, 165874), (197, 144824), (344, 82937), (394, 72412), (421, 67768), (788, 36206), (842, 33884), (1576, 18103), (1684, 16942), (3368, 8471)]