1989190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 4140864

約数和(自身を除く): 2151674

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 157, 181, 314, 362, 785, 905, 1099, 1267, 1570, 1810, 2198, 2534, 5495, 6335, 10990, 12670, 28417, 56834, 142085, 198919, 284170, 397838, 994595, 1989190]

約数ペア:

[(1, 1989190), (2, 994595), (5, 397838), (7, 284170), (10, 198919), (14, 142085), (35, 56834), (70, 28417), (157, 12670), (181, 10990), (314, 6335), (362, 5495), (785, 2534), (905, 2198), (1099, 1810), (1267, 1570)]