78556816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{1289}}^1$

素因数の和:1603

約数の個数: 40

約数和(自身を含む): 164598840

約数和(自身を除く): 86042024

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 293, 586, 1172, 1289, 2344, 2578, 3809, 4688, 5156, 7618, 10312, 15236, 16757, 20624, 30472, 33514, 60944, 67028, 134056, 268112, 377677, 755354, 1510708, 3021416, 4909801, 6042832, 9819602, 19639204, 39278408, 78556816]

約数ペア:

[(1, 78556816), (2, 39278408), (4, 19639204), (8, 9819602), (13, 6042832), (16, 4909801), (26, 3021416), (52, 1510708), (104, 755354), (208, 377677), (293, 268112), (586, 134056), (1172, 67028), (1289, 60944), (2344, 33514), (2578, 30472), (3809, 20624), (4688, 16757), (5156, 15236), (7618, 10312)]