825556319

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{659}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 1021870080

約数和(自身を除く): 196313761

約数列:

[1, 7, 23, 31, 161, 217, 251, 659, 713, 1757, 4613, 4991, 5773, 7781, 15157, 20429, 40411, 54467, 106099, 143003, 165409, 178963, 469867, 1157863, 1252741, 3289069, 3804407, 5127679, 26630849, 35893753, 117936617, 825556319]

約数ペア:

[(1, 825556319), (7, 117936617), (23, 35893753), (31, 26630849), (161, 5127679), (217, 3804407), (251, 3289069), (659, 1252741), (713, 1157863), (1757, 469867), (4613, 178963), (4991, 165409), (5773, 143003), (7781, 106099), (15157, 54467), (20429, 40411)]