12840

素因数分解:

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

素因数の和:121

約数の個数: 32

約数和(自身を含む): 38880

約数和(自身を除く): 26040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 107, 120, 214, 321, 428, 535, 642, 856, 1070, 1284, 1605, 2140, 2568, 3210, 4280, 6420, 12840]

約数ペア:

[(1, 12840), (2, 6420), (3, 4280), (4, 3210), (5, 2568), (6, 2140), (8, 1605), (10, 1284), (12, 1070), (15, 856), (20, 642), (24, 535), (30, 428), (40, 321), (60, 214), (107, 120)]