19381980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{3019}}^1$

素因数の和:3138

約数の個数: 48

約数和(自身を含む): 54794880

約数和(自身を除く): 35412900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 107, 214, 321, 428, 535, 642, 1070, 1284, 1605, 2140, 3019, 3210, 6038, 6420, 9057, 12076, 15095, 18114, 30190, 36228, 45285, 60380, 90570, 181140, 323033, 646066, 969099, 1292132, 1615165, 1938198, 3230330, 3876396, 4845495, 6460660, 9690990, 19381980]

約数ペア:

[(1, 19381980), (2, 9690990), (3, 6460660), (4, 4845495), (5, 3876396), (6, 3230330), (10, 1938198), (12, 1615165), (15, 1292132), (20, 969099), (30, 646066), (60, 323033), (107, 181140), (214, 90570), (321, 60380), (428, 45285), (535, 36228), (642, 30190), (1070, 18114), (1284, 15095), (1605, 12076), (2140, 9057), (3019, 6420), (3210, 6038)]