26579980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{373}}^1\times {\mathrm{509}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 64088640

約数和(自身を除く): 37508660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 373, 509, 746, 1018, 1492, 1865, 2036, 2545, 2611, 3563, 3730, 5090, 5222, 7126, 7460, 10180, 10444, 13055, 14252, 17815, 26110, 35630, 52220, 71260, 189857, 379714, 759428, 949285, 1328999, 1898570, 2657998, 3797140, 5315996, 6644995, 13289990, 26579980]

約数ペア:

[(1, 26579980), (2, 13289990), (4, 6644995), (5, 5315996), (7, 3797140), (10, 2657998), (14, 1898570), (20, 1328999), (28, 949285), (35, 759428), (70, 379714), (140, 189857), (373, 71260), (509, 52220), (746, 35630), (1018, 26110), (1492, 17815), (1865, 14252), (2036, 13055), (2545, 10444), (2611, 10180), (3563, 7460), (3730, 7126), (5090, 5222)]