205920207

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 318689280

約数和(自身を除く): 112769073

約数列:

[1, 3, 9, 37, 47, 59, 111, 141, 177, 223, 333, 423, 531, 669, 1739, 2007, 2183, 2773, 5217, 6549, 8251, 8319, 10481, 13157, 15651, 19647, 24753, 24957, 31443, 39471, 74259, 94329, 102601, 118413, 307803, 387797, 486809, 618379, 923409, 1163391, 1460427, 1855137, 3490173, 4381281, 5565411, 22880023, 68640069, 205920207]

約数ペア:

[(1, 205920207), (3, 68640069), (9, 22880023), (37, 5565411), (47, 4381281), (59, 3490173), (111, 1855137), (141, 1460427), (177, 1163391), (223, 923409), (333, 618379), (423, 486809), (531, 387797), (669, 307803), (1739, 118413), (2007, 102601), (2183, 94329), (2773, 74259), (5217, 39471), (6549, 31443), (8251, 24957), (8319, 24753), (10481, 19647), (13157, 15651)]