20574995

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 29998080

約数和(自身を除く): 9423085

約数列:

[1, 5, 7, 23, 35, 61, 115, 161, 305, 419, 427, 805, 1403, 2095, 2135, 2933, 7015, 9637, 9821, 14665, 25559, 48185, 49105, 67459, 127795, 178913, 337295, 587857, 894565, 2939285, 4114999, 20574995]

約数ペア:

[(1, 20574995), (5, 4114999), (7, 2939285), (23, 894565), (35, 587857), (61, 337295), (115, 178913), (161, 127795), (305, 67459), (419, 49105), (427, 48185), (805, 25559), (1403, 14665), (2095, 9821), (2135, 9637), (2933, 7015)]