1640672007

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{409}}^1\times {\mathrm{1409}}^1$

素因数の和:1907

約数の個数: 32

約数和(自身を含む): 2395646400

約数和(自身を除く): 754974393

約数列:

[1, 3, 13, 39, 73, 219, 409, 949, 1227, 1409, 2847, 4227, 5317, 15951, 18317, 29857, 54951, 89571, 102857, 308571, 388141, 576281, 1164423, 1337141, 1728843, 4011423, 7491653, 22474959, 42068513, 126205539, 546890669, 1640672007]

約数ペア:

[(1, 1640672007), (3, 546890669), (13, 126205539), (39, 42068513), (73, 22474959), (219, 7491653), (409, 4011423), (949, 1728843), (1227, 1337141), (1409, 1164423), (2847, 576281), (4227, 388141), (5317, 308571), (15951, 102857), (18317, 89571), (29857, 54951)]