7878220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{8039}}^1$

素因数の和:8062

約数の個数: 36

約数和(自身を含む): 19247760

約数和(自身を除く): 11369540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 8039, 16078, 32156, 40195, 56273, 80390, 112546, 160780, 225092, 281365, 393911, 562730, 787822, 1125460, 1575644, 1969555, 3939110, 7878220]

約数ペア:

[(1, 7878220), (2, 3939110), (4, 1969555), (5, 1575644), (7, 1125460), (10, 787822), (14, 562730), (20, 393911), (28, 281365), (35, 225092), (49, 160780), (70, 112546), (98, 80390), (140, 56273), (196, 40195), (245, 32156), (490, 16078), (980, 8039)]