28278390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{19237}}^1$

素因数の和:19261

約数の個数: 48

約数和(自身を含む): 78952752

約数和(自身を除く): 50674362

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 19237, 38474, 57711, 96185, 115422, 134659, 192370, 269318, 288555, 403977, 577110, 673295, 807954, 942613, 1346590, 1885226, 2019885, 2827839, 4039770, 4713065, 5655678, 9426130, 14139195, 28278390]

約数ペア:

[(1, 28278390), (2, 14139195), (3, 9426130), (5, 5655678), (6, 4713065), (7, 4039770), (10, 2827839), (14, 2019885), (15, 1885226), (21, 1346590), (30, 942613), (35, 807954), (42, 673295), (49, 577110), (70, 403977), (98, 288555), (105, 269318), (147, 192370), (210, 134659), (245, 115422), (294, 96185), (490, 57711), (735, 38474), (1470, 19237)]