174977140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{1997}}^1$

素因数の和:2356

約数の個数: 48

約数和(自身を含む): 397090512

約数和(自身を除く): 222113372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 337, 674, 1348, 1685, 1997, 3370, 3994, 4381, 6740, 7988, 8762, 9985, 17524, 19970, 21905, 25961, 39940, 43810, 51922, 87620, 103844, 129805, 259610, 519220, 672989, 1345978, 2691956, 3364945, 6729890, 8748857, 13459780, 17497714, 34995428, 43744285, 87488570, 174977140]

約数ペア:

[(1, 174977140), (2, 87488570), (4, 43744285), (5, 34995428), (10, 17497714), (13, 13459780), (20, 8748857), (26, 6729890), (52, 3364945), (65, 2691956), (130, 1345978), (260, 672989), (337, 519220), (674, 259610), (1348, 129805), (1685, 103844), (1997, 87620), (3370, 51922), (3994, 43810), (4381, 39940), (6740, 25961), (7988, 21905), (8762, 19970), (9985, 17524)]