640343822

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{98849}}^1$

素因数の和:98971

約数の個数: 16

約数和(自身を含む): 996408000

約数和(自身を除く): 356064178

約数列:

[1, 2, 41, 79, 82, 158, 3239, 6478, 98849, 197698, 4052809, 7809071, 8105618, 15618142, 320171911, 640343822]

約数ペア:

[(1, 640343822), (2, 320171911), (41, 15618142), (79, 8105618), (82, 7809071), (158, 4052809), (3239, 197698), (6478, 98849)]