211052080

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{6121}}^1$

素因数の和:6565

約数の個数: 40

約数和(自身を含む): 491914944

約数和(自身を除く): 280862864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 862, 1724, 2155, 3448, 4310, 6121, 6896, 8620, 12242, 17240, 24484, 30605, 34480, 48968, 61210, 97936, 122420, 244840, 489680, 2638151, 5276302, 10552604, 13190755, 21105208, 26381510, 42210416, 52763020, 105526040, 211052080]

約数ペア:

[(1, 211052080), (2, 105526040), (4, 52763020), (5, 42210416), (8, 26381510), (10, 21105208), (16, 13190755), (20, 10552604), (40, 5276302), (80, 2638151), (431, 489680), (862, 244840), (1724, 122420), (2155, 97936), (3448, 61210), (4310, 48968), (6121, 34480), (6896, 30605), (8620, 24484), (12242, 17240)]