201561680

素因数分解:

$2^4\times 5^1\times {\mathrm{1277}}^1\times {\mathrm{1973}}^1$

素因数の和:3263

約数の個数: 40

約数和(自身を含む): 469235592

約数和(自身を除く): 267673912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1277, 1973, 2554, 3946, 5108, 6385, 7892, 9865, 10216, 12770, 15784, 19730, 20432, 25540, 31568, 39460, 51080, 78920, 102160, 157840, 2519521, 5039042, 10078084, 12597605, 20156168, 25195210, 40312336, 50390420, 100780840, 201561680]

約数ペア:

[(1, 201561680), (2, 100780840), (4, 50390420), (5, 40312336), (8, 25195210), (10, 20156168), (16, 12597605), (20, 10078084), (40, 5039042), (80, 2519521), (1277, 157840), (1973, 102160), (2554, 78920), (3946, 51080), (5108, 39460), (6385, 31568), (7892, 25540), (9865, 20432), (10216, 19730), (12770, 15784)]