138355945

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{577}}^1$

素因数の和:650

約数の個数: 64

約数和(自身を含む): 223727616

約数和(自身を除く): 85371671

約数列:

[1, 5, 7, 13, 17, 31, 35, 65, 85, 91, 119, 155, 217, 221, 403, 455, 527, 577, 595, 1085, 1105, 1547, 2015, 2635, 2821, 2885, 3689, 4039, 6851, 7501, 7735, 9809, 14105, 17887, 18445, 20195, 34255, 37505, 47957, 49045, 52507, 68663, 89435, 125209, 127517, 232531, 239785, 262535, 304079, 343315, 626045, 637585, 892619, 1162655, 1520395, 1627717, 2128553, 3953027, 4463095, 8138585, 10642765, 19765135, 27671189, 138355945]

約数ペア:

[(1, 138355945), (5, 27671189), (7, 19765135), (13, 10642765), (17, 8138585), (31, 4463095), (35, 3953027), (65, 2128553), (85, 1627717), (91, 1520395), (119, 1162655), (155, 892619), (217, 637585), (221, 626045), (403, 343315), (455, 304079), (527, 262535), (577, 239785), (595, 232531), (1085, 127517), (1105, 125209), (1547, 89435), (2015, 68663), (2635, 52507), (2821, 49045), (2885, 47957), (3689, 37505), (4039, 34255), (6851, 20195), (7501, 18445), (7735, 17887), (9809, 14105)]