281185240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1004233}}^1$

素因数の和:1004251

約数の個数: 32

約数和(自身を含む): 723048480

約数和(自身を除く): 441863240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1004233, 2008466, 4016932, 5021165, 7029631, 8033864, 10042330, 14059262, 20084660, 28118524, 35148155, 40169320, 56237048, 70296310, 140592620, 281185240]

約数ペア:

[(1, 281185240), (2, 140592620), (4, 70296310), (5, 56237048), (7, 40169320), (8, 35148155), (10, 28118524), (14, 20084660), (20, 14059262), (28, 10042330), (35, 8033864), (40, 7029631), (56, 5021165), (70, 4016932), (140, 2008466), (280, 1004233)]