16201980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{90011}}^1$

素因数の和:90026

約数の個数: 36

約数和(自身を含む): 49146552

約数和(自身を除く): 32944572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 90011, 180022, 270033, 360044, 450055, 540066, 810099, 900110, 1080132, 1350165, 1620198, 1800220, 2700330, 3240396, 4050495, 5400660, 8100990, 16201980]

約数ペア:

[(1, 16201980), (2, 8100990), (3, 5400660), (4, 4050495), (5, 3240396), (6, 2700330), (9, 1800220), (10, 1620198), (12, 1350165), (15, 1080132), (18, 900110), (20, 810099), (30, 540066), (36, 450055), (45, 360044), (60, 270033), (90, 180022), (180, 90011)]