20123351648

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{509}}^1\times {\mathrm{17401}}^1$

素因数の和:17991

約数の個数: 48

約数和(自身を含む): 40257090720

約数和(自身を除く): 20133739072

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 284, 509, 568, 1018, 1136, 2036, 2272, 4072, 8144, 16288, 17401, 34802, 36139, 69604, 72278, 139208, 144556, 278416, 289112, 556832, 578224, 1156448, 1235471, 2470942, 4941884, 8857109, 9883768, 17714218, 19767536, 35428436, 39535072, 70856872, 141713744, 283427488, 628854739, 1257709478, 2515418956, 5030837912, 10061675824, 20123351648]

約数ペア:

[(1, 20123351648), (2, 10061675824), (4, 5030837912), (8, 2515418956), (16, 1257709478), (32, 628854739), (71, 283427488), (142, 141713744), (284, 70856872), (509, 39535072), (568, 35428436), (1018, 19767536), (1136, 17714218), (2036, 9883768), (2272, 8857109), (4072, 4941884), (8144, 2470942), (16288, 1235471), (17401, 1156448), (34802, 578224), (36139, 556832), (69604, 289112), (72278, 278416), (139208, 144556)]