28228340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1237}}^1$

素因数の和:1416

約数の個数: 48

約数和(自身を含む): 68218752

約数和(自身を除く): 39990412

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 163, 326, 652, 815, 1141, 1237, 1630, 2282, 2474, 3260, 4564, 4948, 5705, 6185, 8659, 11410, 12370, 17318, 22820, 24740, 34636, 43295, 86590, 173180, 201631, 403262, 806524, 1008155, 1411417, 2016310, 2822834, 4032620, 5645668, 7057085, 14114170, 28228340]

約数ペア:

[(1, 28228340), (2, 14114170), (4, 7057085), (5, 5645668), (7, 4032620), (10, 2822834), (14, 2016310), (20, 1411417), (28, 1008155), (35, 806524), (70, 403262), (140, 201631), (163, 173180), (326, 86590), (652, 43295), (815, 34636), (1141, 24740), (1237, 22820), (1630, 17318), (2282, 12370), (2474, 11410), (3260, 8659), (4564, 6185), (4948, 5705)]