12719420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{12979}}^1$

素因数の和:13002

約数の個数: 36

約数和(自身を含む): 31074120

約数和(自身を除く): 18354700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 12979, 25958, 51916, 64895, 90853, 129790, 181706, 259580, 363412, 454265, 635971, 908530, 1271942, 1817060, 2543884, 3179855, 6359710, 12719420]

約数ペア:

[(1, 12719420), (2, 6359710), (4, 3179855), (5, 2543884), (7, 1817060), (10, 1271942), (14, 908530), (20, 635971), (28, 454265), (35, 363412), (49, 259580), (70, 181706), (98, 129790), (140, 90853), (196, 64895), (245, 51916), (490, 25958), (980, 12979)]