28415672

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{397}}^1$

素因数の和:815

約数の個数: 32

約数和(自身を含む): 55879200

約数和(自身を除く): 27463528

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 389, 397, 778, 794, 1556, 1588, 3112, 3176, 8947, 9131, 17894, 18262, 35788, 36524, 71576, 73048, 154433, 308866, 617732, 1235464, 3551959, 7103918, 14207836, 28415672]

約数ペア:

[(1, 28415672), (2, 14207836), (4, 7103918), (8, 3551959), (23, 1235464), (46, 617732), (92, 308866), (184, 154433), (389, 73048), (397, 71576), (778, 36524), (794, 35788), (1556, 18262), (1588, 17894), (3112, 9131), (3176, 8947)]