20465270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9431}}^1$

素因数の和:9476

約数の個数: 32

約数和(自身を含む): 43462656

約数和(自身を除く): 22997386

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9431, 18862, 47155, 66017, 94310, 132034, 292361, 330085, 584722, 660170, 1461805, 2046527, 2923610, 4093054, 10232635, 20465270]

約数ペア:

[(1, 20465270), (2, 10232635), (5, 4093054), (7, 2923610), (10, 2046527), (14, 1461805), (31, 660170), (35, 584722), (62, 330085), (70, 292361), (155, 132034), (217, 94310), (310, 66017), (434, 47155), (1085, 18862), (2170, 9431)]