256140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1423}}^1$

素因数の和:1438

約数の個数: 36

約数和(自身を含む): 777504

約数和(自身を除く): 521364

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1423, 2846, 4269, 5692, 7115, 8538, 12807, 14230, 17076, 21345, 25614, 28460, 42690, 51228, 64035, 85380, 128070, 256140]

約数ペア:

[(1, 256140), (2, 128070), (3, 85380), (4, 64035), (5, 51228), (6, 42690), (9, 28460), (10, 25614), (12, 21345), (15, 17076), (18, 14230), (20, 12807), (30, 8538), (36, 7115), (45, 5692), (60, 4269), (90, 2846), (180, 1423)]