1284535

素因数分解:

$5^1\times 7^4\times {\mathrm{107}}^1$

素因数の和:140

約数の個数: 20

約数和(自身を含む): 1815048

約数和(自身を除く): 530513

約数列:

[1, 5, 7, 35, 49, 107, 245, 343, 535, 749, 1715, 2401, 3745, 5243, 12005, 26215, 36701, 183505, 256907, 1284535]

約数ペア:

[(1, 1284535), (5, 256907), (7, 183505), (35, 36701), (49, 26215), (107, 12005), (245, 5243), (343, 3745), (535, 2401), (749, 1715)]