1285207960

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{234527}}^1$

素因数の和:234675

約数の個数: 32

約数和(自身を含む): 2912837760

約数和(自身を除く): 1627629800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 234527, 469054, 938108, 1172635, 1876216, 2345270, 4690540, 9381080, 32130199, 64260398, 128520796, 160650995, 257041592, 321301990, 642603980, 1285207960]

約数ペア:

[(1, 1285207960), (2, 642603980), (4, 321301990), (5, 257041592), (8, 160650995), (10, 128520796), (20, 64260398), (40, 32130199), (137, 9381080), (274, 4690540), (548, 2345270), (685, 1876216), (1096, 1172635), (1370, 938108), (2740, 469054), (5480, 234527)]