157457720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{562349}}^1$

素因数の和:562367

約数の個数: 32

約数和(自身を含む): 404892000

約数和(自身を除く): 247434280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 562349, 1124698, 2249396, 2811745, 3936443, 4498792, 5623490, 7872886, 11246980, 15745772, 19682215, 22493960, 31491544, 39364430, 78728860, 157457720]

約数ペア:

[(1, 157457720), (2, 78728860), (4, 39364430), (5, 31491544), (7, 22493960), (8, 19682215), (10, 15745772), (14, 11246980), (20, 7872886), (28, 5623490), (35, 4498792), (40, 3936443), (56, 2811745), (70, 2249396), (140, 1124698), (280, 562349)]