20005200257

素因数分解:

$7^3\times {\mathrm{79}}^1\times {\mathrm{673}}^1\times {\mathrm{1097}}^1$

素因数の和:1870

約数の個数: 32

約数和(自身を含む): 23681664000

約数和(自身を除く): 3676463743

約数列:

[1, 7, 49, 79, 343, 553, 673, 1097, 3871, 4711, 7679, 27097, 32977, 53167, 53753, 86663, 230839, 372169, 376271, 606641, 738281, 2605183, 4246487, 5167967, 18236281, 29725409, 36175769, 58324199, 253230383, 408269393, 2857885751, 20005200257]

約数ペア:

[(1, 20005200257), (7, 2857885751), (49, 408269393), (79, 253230383), (343, 58324199), (553, 36175769), (673, 29725409), (1097, 18236281), (3871, 5167967), (4711, 4246487), (7679, 2605183), (27097, 738281), (32977, 606641), (53167, 376271), (53753, 372169), (86663, 230839)]