65487940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{919}}^1$

素因数の和:1444

約数の個数: 48

約数和(自身を含む): 157651200

約数和(自身を除く): 92163260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 509, 919, 1018, 1838, 2036, 2545, 3563, 3676, 4595, 5090, 6433, 7126, 9190, 10180, 12866, 14252, 17815, 18380, 25732, 32165, 35630, 64330, 71260, 128660, 467771, 935542, 1871084, 2338855, 3274397, 4677710, 6548794, 9355420, 13097588, 16371985, 32743970, 65487940]

約数ペア:

[(1, 65487940), (2, 32743970), (4, 16371985), (5, 13097588), (7, 9355420), (10, 6548794), (14, 4677710), (20, 3274397), (28, 2338855), (35, 1871084), (70, 935542), (140, 467771), (509, 128660), (919, 71260), (1018, 64330), (1838, 35630), (2036, 32165), (2545, 25732), (3563, 18380), (3676, 17815), (4595, 14252), (5090, 12866), (6433, 10180), (7126, 9190)]