1997500010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{115663}}^1$

素因数の和:115838

約数の個数: 32

約数和(自身を含む): 3947380992

約数和(自身を除く): 1949880982

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 157, 314, 785, 1570, 1727, 3454, 8635, 17270, 115663, 231326, 578315, 1156630, 1272293, 2544586, 6361465, 12722930, 18159091, 36318182, 90795455, 181590910, 199750001, 399500002, 998750005, 1997500010]

約数ペア:

[(1, 1997500010), (2, 998750005), (5, 399500002), (10, 199750001), (11, 181590910), (22, 90795455), (55, 36318182), (110, 18159091), (157, 12722930), (314, 6361465), (785, 2544586), (1570, 1272293), (1727, 1156630), (3454, 578315), (8635, 231326), (17270, 115663)]